WiFi (r8712u) is not working after upgrading to Ubuntu 16.04WiFi (r8712u) is only working after doing rmmod...

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WiFi (r8712u) is not working after upgrading to Ubuntu 16.04


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I upgraded from Ubuntu 15.10 to 16.04 and my wifi has stopped working. I have an Asus USB Wifi Adapter and it is able to detect the wifi signals. However, upon clicking on my home wifi I am unable to connect to it. I have had a look at this issue WiFi (r8712u) is only working after doing rmmod & modprobe but had no success.



I am providing the below information and hoping the ubuntu community can help me here! Please let me know if you need any more information to solve the issue.



lshw -class network



*-network               
description: Ethernet interface
product: 82566DC Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eth0
version: 02
serial: 00:19:d1:85:4b:d4
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=1.1-0 latency=0 link=no multicast=yes port=twisted pair
resources: irq:29 memory:90300000-9031ffff memory:90324000-90324fff ioport:30c0(size=32)
*-network
description: Wireless interface
physical id: 1
bus info: usb@1:3.3
logical name: wlan0
serial: f4:6d:04:8b:44:b1
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=r8712u multicast=yes wireless=unassociated


lsusb



Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 005: ID 0bc2:3300 Seagate RSS LLC
Bus 001 Device 004: ID 0b05:1791 ASUSTek Computer, Inc. WL-167G v3 802.11n Adapter [Realtek RTL8188SU]
Bus 001 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


lspci



00:00.0 Host bridge: Intel Corporation 82P965/G965 Memory Controller Hub (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82G965 Integrated Graphics Controller (rev 02)
00:03.0 Communication controller: Intel Corporation 82P965/G965 HECI Controller (rev 02)
00:19.0 Ethernet controller: Intel Corporation 82566DC Gigabit Network Connection (rev 02)
00:1a.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
00:1a.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 02)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 02)
00:1d.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2)
00:1f.0 ISA bridge: Intel Corporation 82801HB/HR (ICH8/R) LPC Interface Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801H (ICH8 Family) 4 port SATA Controller [IDE mode] (rev 02)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
00:1f.5 IDE interface: Intel Corporation 82801HR/HO/HH (ICH8R/DO/DH) 2 port SATA Controller [IDE mode] (rev 02)
02:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6101/6102 single-port PATA133 interface (rev b1)
06:00.0 Multimedia audio controller: ESS Technology ES1938/ES1946/ES1969 Solo-1 Audiodrive (rev 02)
06:03.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22A IEEE-1394a-2000 Controller (PHY/Link) [iOHCI-Lynx]


rmmod r8712u && sudo modprobe r8712u ( I have tried this as suggested in the above mentioned link but did not have any success. I have even tried restarting the network manager as mentioned in the link but had no success even there).



[ 1732.118252] usbcore: deregistering interface driver r8712u
[ 1732.436048] usb 1-3.3: reset high-speed USB device number 4 using ehci-pci
[ 1732.652796] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
[ 1732.653771] r8712u: register rtl8712_netdev_ops to netdev_ops
[ 1732.653777] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
[ 1732.654323] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
[ 1733.065831] usb 1-3.3: r8712u: CustomerID = 0x0010
[ 1733.065839] usb 1-3.3: r8712u: MAC Address from efuse = f4:6d:04:8b:44:b1
[ 1733.065845] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
[ 1733.069364] usbcore: registered new interface driver r8712u
[ 1733.101181] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 1733.808456] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
[ 1733.809196] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
[ 1733.916265] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 1733.973323] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready


(An interesting piece of information here might be that when I turn the hotspot on on my phone, I am able to connect to my phone's wifi with the same setup. However, it is the home wifi I have been having problem connecting to. I have checked and rechecked the password I am entering and it is correct.)



Edit: Adding the wireless-info.txt contents here.



########## wireless info START ##########

Report from: 10 Jun 2016 00:34 IST +0530

Booted last: 10 Jun 2016 00:00 IST +0530

Script from: 26 May 2016 21:56 UTC +0000

##### release ###########################

Distributor ID: Ubuntu
Description: Ubuntu 16.04 LTS
Release: 16.04
Codename: xenial

##### kernel ############################

Linux 4.4.0-23-generic #41-Ubuntu SMP Mon May 16 23:03:32 UTC 2016 i686 i686 i686 GNU/Linux

Parameters: ro, quiet, splash, vt.handoff=7

##### desktop ###########################

sed: can't read /root/.dmrc: No such file or directory

Could not be determined.

##### lspci #############################

00:19.0 Ethernet controller [0200]: Intel Corporation 82566DC Gigabit Network Connection [8086:104b] (rev 02)
Subsystem: Intel Corporation 82566DC Gigabit Network Connection [8086:0001]
Kernel driver in use: e1000e

##### lsusb #############################

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 005: ID 0bc2:3300 Seagate RSS LLC
Bus 001 Device 004: ID 0b05:1791 ASUSTek Computer, Inc. WL-167G v3 802.11n Adapter [Realtek RTL8188SU]
Bus 001 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

##### PCMCIA card info ##################

##### rfkill ############################

##### lsmod #############################

r8712u 159744 0
cfg80211 499712 0

##### interfaces ########################

auto lo
iface lo inet loopback

##### ifconfig ##########################

eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF1]>
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:20 Memory:90300000-90320000

wlan0 Link encap:Ethernet HWaddr <MAC 'wlan0' [IF2]>
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:5894 errors:0 dropped:2201 overruns:0 frame:0
TX packets:6662 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1879837 (1.8 MB) TX bytes:1148881 (1.1 MB)

##### iwconfig ##########################

lo no wireless extensions.

eth0 no wireless extensions.

wlan0 unassociated Nickname:"rtl_wifi"
Mode:Managed Access Point: Not-Associated Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

##### route #############################

Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface

##### resolv.conf #######################

nameserver 127.0.1.1

##### network managers ##################

Installed:

NetworkManager

Running:

root 2451 1 0 Jun09 ? 00:00:01 /usr/sbin/NetworkManager --no-daemon

##### NetworkManager info ###############

GENERAL.DEVICE: wlan0
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.VENDOR: Manufacturer Realtek
GENERAL.PRODUCT: ASUS WL-167G V3
GENERAL.DRIVER: r8712u
GENERAL.DRIVER-VERSION:
GENERAL.FIRMWARE-VERSION:
GENERAL.HWADDR: <MAC 'wlan0' [IF2]>
GENERAL.MTU: 1500
GENERAL.STATE: 30 (disconnected)
GENERAL.REASON: 39 (Device disconnected by user or client)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1a.7/usb1/1-3/1-3.3/1-3.3:1.0/net/wlan0
GENERAL.IP-IFACE:
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: no
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
WIFI-PROPERTIES.WEP: yes
WIFI-PROPERTIES.WPA: yes
WIFI-PROPERTIES.WPA2: yes
WIFI-PROPERTIES.TKIP: yes
WIFI-PROPERTIES.CCMP: yes
WIFI-PROPERTIES.AP: no
WIFI-PROPERTIES.ADHOC: yes
WIFI-PROPERTIES.2GHZ: yes
WIFI-PROPERTIES.5GHZ: no
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0,2}
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 81d133ad-d1c3-4ebf-a108-7837c7e5e881 | Sid Mi Phone
CONNECTIONS.AVAILABLE-CONNECTIONS[2]: 4a6effa2-47de-4606-bdd6-13d9afcba61e | Sid

GENERAL.DEVICE: eth0
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.VENDOR: Intel Corporation
GENERAL.PRODUCT: 82566DC Gigabit Network Connection
GENERAL.DRIVER: e1000e
GENERAL.DRIVER-VERSION: 3.2.6-k
GENERAL.FIRMWARE-VERSION: 1.1-0
GENERAL.HWADDR: <MAC 'eth0' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:19.0/net/eth0
GENERAL.IP-IFACE:
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
WIRED-PROPERTIES.CARRIER: off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS:

SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
Sid Mi Phone <MAC 'Sid Mi Phone' [AN1]> Infra 6 2437 MHz 54 Mbit/s 100 ▂▄▆█ WPA2 no
Sid <MAC 'Sid' [AC1]> Infra 10 2457 MHz 54 Mbit/s 56 ▂▄▆_ WPA1 WPA2 no
Spark <MAC 'Spark' [AN3]> Infra 1 2412 MHz 54 Mbit/s 7 ▂___ WPA1 WPA2 no

##### NetworkManager.state ##############

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true

##### NetworkManager.conf ###############

[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq

[ifupdown]
managed=false

##### NetworkManager profiles ###########

[[/etc/NetworkManager/system-connections/Sid Mi Phone]] (600 root)
[connection] id=Sid Mi Phone | type=wifi | permissions=user:sid:;
[wifi] mac-address=<MAC 'wlan0' [IF2]> | mac-address-blacklist= | ssid=Sid Mi Phone
[ipv4] method=auto
[ipv6] method=auto

[[/etc/NetworkManager/system-connections/Sid]] (600 root)
[connection] id=Sid | type=wifi | permissions=
[wifi] mac-address=<MAC 'wlan0' [IF2]> | mac-address-blacklist= | ssid=Sid
[ipv4] method=auto
[ipv6] method=auto

##### iw reg get ########################

Region: Asia/Kolkata (based on set time zone)

country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
(5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, NO-IR
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, NO-IR
(5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
(57240 - 63720 @ 2160), (N/A, 0), (N/A)

##### iwlist channels ###################

lo no frequency information.

eth0 no frequency information.

wlan0 14 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Channel 14 : 2.484 GHz

##### iwlist scan #######################

lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

Channel occupancy:

1 APs on Frequency:2.457 GHz (Channel 10)

wlan0 Scan completed :
Cell 01 - Address: <MAC 'Sid' [AC1]>
ESSID:"Sid"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.457 GHz (Channel 10)
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2020050f20401000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Extra:rsn_ie=30180100000fac020200000fac02000fac040100000fac020000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Signal level=57/100

##### module infos ######################

[r8712u]
filename: /lib/modules/4.4.0-23-generic/kernel/drivers/staging/rtl8712/r8712u.ko
firmware: rtlwifi/rtl8712u.bin
author: Larry Finger
description: rtl871x wireless lan driver
license: GPL
srcversion: C6F0E0D1D849C2145DD5F72
depends:
staging: Y
intree: Y
vermagic: 4.4.0-23-generic SMP mod_unload modversions 686
parm: wifi_test:int
parm: video_mode:int
parm: chip_version:int
parm: rfintfs:int
parm: lbkmode:int
parm: hci:int
parm: network_mode:int
parm: channel:int
parm: mp_mode:int
parm: wmm_enable:int
parm: vrtl_carrier_sense:int
parm: vcs_type:int
parm: busy_thresh:int
parm: ht_enable:int
parm: cbw40_enable:int
parm: ampdu_enable:int
parm: rf_config:int
parm: power_mgnt:int
parm: low_power:int
parm: ifname: Net interface name, wlan%d=default (string)
parm: initmac:MAC-Address, default: use FUSE (charp)

[cfg80211]
filename: /lib/modules/4.4.0-23-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: 25A45701AAA64DAC1E47D9D
depends:
intree: Y
vermagic: 4.4.0-23-generic SMP mod_unload modversions 686
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

##### module parameters #################

[r8712u]
ampdu_enable: 1
busy_thresh: 40
cbw40_enable: 1
channel: 1
chip_version: 2
hci: 1
ht_enable: 1
ifname: wlan%d
initmac: (null)
lbkmode: 0
low_power: 0
mp_mode: 0
network_mode: 0
power_mgnt: 0
rf_config: 1
rfintfs: 2
vcs_type: 1
video_mode: 1
vrtl_carrier_sense: 2
wifi_test: 0
wmm_enable: 0

[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00

##### /etc/modules ######################

lp

##### modprobe options ##################

[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci

[/etc/modprobe.d/blacklist-bcm43.conf]
blacklist b43
blacklist b43legacy
blacklist ssb
blacklist bcm43xx
blacklist brcm80211
blacklist brcmfmac
blacklist brcmsmac
blacklist bcma

[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac

[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off

[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod)
&& /sbin/modprobe -r mac80211

[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en

##### rc.local ##########################

exit 0

##### pm-utils ##########################

##### udev rules ########################

[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x8086:0x104b (e1000e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF1]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# USB device 0x:0x (r8712u)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF2]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

##### dmesg #############################

[ 252.098895] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
[ 252.099852] r8712u: register rtl8712_netdev_ops to netdev_ops
[ 252.099859] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
[ 252.100405] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
[ 252.509037] usb 1-3.3: r8712u: CustomerID = 0x0010
[ 252.509045] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
[ 252.509051] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
[ 252.621139] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 253.328535] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
[ 253.329400] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
[ 253.436347] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 6 times)
[ 354.796336] e1000e: eth0 NIC Link is Down
[ 355.289572] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready (repeated 2 times)
[ 355.766426] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 7 times)
[ 604.735424] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 1020.413046] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 2 times)
[ 1447.413629] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
[ 1447.414604] r8712u: register rtl8712_netdev_ops to netdev_ops
[ 1447.414610] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
[ 1447.415169] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
[ 1447.865302] usb 1-3.3: r8712u: CustomerID = 0x0010
[ 1447.865310] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
[ 1447.865316] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
[ 1448.079037] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 1448.784428] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
[ 1448.785170] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
[ 1448.892384] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 3 times)
[ 1732.652796] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
[ 1732.653771] r8712u: register rtl8712_netdev_ops to netdev_ops
[ 1732.653777] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
[ 1732.654323] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
[ 1733.065831] usb 1-3.3: r8712u: CustomerID = 0x0010
[ 1733.065839] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
[ 1733.065845] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
[ 1733.101181] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 1733.808456] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
[ 1733.809196] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
[ 1733.916265] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 4 times)
[ 2012.843797] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

########## wireless info END ############









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    I upgraded from Ubuntu 15.10 to 16.04 and my wifi has stopped working. I have an Asus USB Wifi Adapter and it is able to detect the wifi signals. However, upon clicking on my home wifi I am unable to connect to it. I have had a look at this issue WiFi (r8712u) is only working after doing rmmod & modprobe but had no success.



    I am providing the below information and hoping the ubuntu community can help me here! Please let me know if you need any more information to solve the issue.



    lshw -class network



    *-network               
    description: Ethernet interface
    product: 82566DC Gigabit Network Connection
    vendor: Intel Corporation
    physical id: 19
    bus info: pci@0000:00:19.0
    logical name: eth0
    version: 02
    serial: 00:19:d1:85:4b:d4
    capacity: 1Gbit/s
    width: 32 bits
    clock: 33MHz
    capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
    configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=1.1-0 latency=0 link=no multicast=yes port=twisted pair
    resources: irq:29 memory:90300000-9031ffff memory:90324000-90324fff ioport:30c0(size=32)
    *-network
    description: Wireless interface
    physical id: 1
    bus info: usb@1:3.3
    logical name: wlan0
    serial: f4:6d:04:8b:44:b1
    capabilities: ethernet physical wireless
    configuration: broadcast=yes driver=r8712u multicast=yes wireless=unassociated


    lsusb



    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 005: ID 0bc2:3300 Seagate RSS LLC
    Bus 001 Device 004: ID 0b05:1791 ASUSTek Computer, Inc. WL-167G v3 802.11n Adapter [Realtek RTL8188SU]
    Bus 001 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
    Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


    lspci



    00:00.0 Host bridge: Intel Corporation 82P965/G965 Memory Controller Hub (rev 02)
    00:02.0 VGA compatible controller: Intel Corporation 82G965 Integrated Graphics Controller (rev 02)
    00:03.0 Communication controller: Intel Corporation 82P965/G965 HECI Controller (rev 02)
    00:19.0 Ethernet controller: Intel Corporation 82566DC Gigabit Network Connection (rev 02)
    00:1a.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02)
    00:1a.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
    00:1a.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
    00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
    00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
    00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
    00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 02)
    00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 02)
    00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 02)
    00:1d.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
    00:1d.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
    00:1d.2 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
    00:1d.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
    00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2)
    00:1f.0 ISA bridge: Intel Corporation 82801HB/HR (ICH8/R) LPC Interface Controller (rev 02)
    00:1f.2 IDE interface: Intel Corporation 82801H (ICH8 Family) 4 port SATA Controller [IDE mode] (rev 02)
    00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
    00:1f.5 IDE interface: Intel Corporation 82801HR/HO/HH (ICH8R/DO/DH) 2 port SATA Controller [IDE mode] (rev 02)
    02:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6101/6102 single-port PATA133 interface (rev b1)
    06:00.0 Multimedia audio controller: ESS Technology ES1938/ES1946/ES1969 Solo-1 Audiodrive (rev 02)
    06:03.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22A IEEE-1394a-2000 Controller (PHY/Link) [iOHCI-Lynx]


    rmmod r8712u && sudo modprobe r8712u ( I have tried this as suggested in the above mentioned link but did not have any success. I have even tried restarting the network manager as mentioned in the link but had no success even there).



    [ 1732.118252] usbcore: deregistering interface driver r8712u
    [ 1732.436048] usb 1-3.3: reset high-speed USB device number 4 using ehci-pci
    [ 1732.652796] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
    [ 1732.653771] r8712u: register rtl8712_netdev_ops to netdev_ops
    [ 1732.653777] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
    [ 1732.654323] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
    [ 1733.065831] usb 1-3.3: r8712u: CustomerID = 0x0010
    [ 1733.065839] usb 1-3.3: r8712u: MAC Address from efuse = f4:6d:04:8b:44:b1
    [ 1733.065845] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
    [ 1733.069364] usbcore: registered new interface driver r8712u
    [ 1733.101181] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
    [ 1733.808456] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
    [ 1733.809196] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
    [ 1733.916265] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
    [ 1733.973323] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready


    (An interesting piece of information here might be that when I turn the hotspot on on my phone, I am able to connect to my phone's wifi with the same setup. However, it is the home wifi I have been having problem connecting to. I have checked and rechecked the password I am entering and it is correct.)



    Edit: Adding the wireless-info.txt contents here.



    ########## wireless info START ##########

    Report from: 10 Jun 2016 00:34 IST +0530

    Booted last: 10 Jun 2016 00:00 IST +0530

    Script from: 26 May 2016 21:56 UTC +0000

    ##### release ###########################

    Distributor ID: Ubuntu
    Description: Ubuntu 16.04 LTS
    Release: 16.04
    Codename: xenial

    ##### kernel ############################

    Linux 4.4.0-23-generic #41-Ubuntu SMP Mon May 16 23:03:32 UTC 2016 i686 i686 i686 GNU/Linux

    Parameters: ro, quiet, splash, vt.handoff=7

    ##### desktop ###########################

    sed: can't read /root/.dmrc: No such file or directory

    Could not be determined.

    ##### lspci #############################

    00:19.0 Ethernet controller [0200]: Intel Corporation 82566DC Gigabit Network Connection [8086:104b] (rev 02)
    Subsystem: Intel Corporation 82566DC Gigabit Network Connection [8086:0001]
    Kernel driver in use: e1000e

    ##### lsusb #############################

    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 001 Device 005: ID 0bc2:3300 Seagate RSS LLC
    Bus 001 Device 004: ID 0b05:1791 ASUSTek Computer, Inc. WL-167G v3 802.11n Adapter [Realtek RTL8188SU]
    Bus 001 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
    Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

    ##### PCMCIA card info ##################

    ##### rfkill ############################

    ##### lsmod #############################

    r8712u 159744 0
    cfg80211 499712 0

    ##### interfaces ########################

    auto lo
    iface lo inet loopback

    ##### ifconfig ##########################

    eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF1]>
    UP BROADCAST MULTICAST MTU:1500 Metric:1
    RX packets:0 errors:0 dropped:0 overruns:0 frame:0
    TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
    Interrupt:20 Memory:90300000-90320000

    wlan0 Link encap:Ethernet HWaddr <MAC 'wlan0' [IF2]>
    UP BROADCAST MULTICAST MTU:1500 Metric:1
    RX packets:5894 errors:0 dropped:2201 overruns:0 frame:0
    TX packets:6662 errors:0 dropped:0 overruns:0 carrier:0
    collisions:0 txqueuelen:1000
    RX bytes:1879837 (1.8 MB) TX bytes:1148881 (1.1 MB)

    ##### iwconfig ##########################

    lo no wireless extensions.

    eth0 no wireless extensions.

    wlan0 unassociated Nickname:"rtl_wifi"
    Mode:Managed Access Point: Not-Associated Sensitivity:0/0
    Retry:off RTS thr:off Fragment thr:off
    Encryption key:off
    Power Management:off
    Link Quality:0 Signal level:0 Noise level:0
    Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
    Tx excessive retries:0 Invalid misc:0 Missed beacon:0

    ##### route #############################

    Kernel IP routing table
    Destination Gateway Genmask Flags Metric Ref Use Iface

    ##### resolv.conf #######################

    nameserver 127.0.1.1

    ##### network managers ##################

    Installed:

    NetworkManager

    Running:

    root 2451 1 0 Jun09 ? 00:00:01 /usr/sbin/NetworkManager --no-daemon

    ##### NetworkManager info ###############

    GENERAL.DEVICE: wlan0
    GENERAL.TYPE: wifi
    GENERAL.NM-TYPE: NMDeviceWifi
    GENERAL.VENDOR: Manufacturer Realtek
    GENERAL.PRODUCT: ASUS WL-167G V3
    GENERAL.DRIVER: r8712u
    GENERAL.DRIVER-VERSION:
    GENERAL.FIRMWARE-VERSION:
    GENERAL.HWADDR: <MAC 'wlan0' [IF2]>
    GENERAL.MTU: 1500
    GENERAL.STATE: 30 (disconnected)
    GENERAL.REASON: 39 (Device disconnected by user or client)
    GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1a.7/usb1/1-3/1-3.3/1-3.3:1.0/net/wlan0
    GENERAL.IP-IFACE:
    GENERAL.IS-SOFTWARE: no
    GENERAL.NM-MANAGED: yes
    GENERAL.AUTOCONNECT: no
    GENERAL.FIRMWARE-MISSING: no
    GENERAL.NM-PLUGIN-MISSING: no
    GENERAL.PHYS-PORT-ID: --
    GENERAL.CONNECTION: --
    GENERAL.CON-UUID: --
    GENERAL.CON-PATH: --
    GENERAL.METERED: unknown
    CAPABILITIES.CARRIER-DETECT: no
    CAPABILITIES.SPEED: unknown
    CAPABILITIES.IS-SOFTWARE: no
    WIFI-PROPERTIES.WEP: yes
    WIFI-PROPERTIES.WPA: yes
    WIFI-PROPERTIES.WPA2: yes
    WIFI-PROPERTIES.TKIP: yes
    WIFI-PROPERTIES.CCMP: yes
    WIFI-PROPERTIES.AP: no
    WIFI-PROPERTIES.ADHOC: yes
    WIFI-PROPERTIES.2GHZ: yes
    WIFI-PROPERTIES.5GHZ: no
    CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0,2}
    CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 81d133ad-d1c3-4ebf-a108-7837c7e5e881 | Sid Mi Phone
    CONNECTIONS.AVAILABLE-CONNECTIONS[2]: 4a6effa2-47de-4606-bdd6-13d9afcba61e | Sid

    GENERAL.DEVICE: eth0
    GENERAL.TYPE: ethernet
    GENERAL.NM-TYPE: NMDeviceEthernet
    GENERAL.VENDOR: Intel Corporation
    GENERAL.PRODUCT: 82566DC Gigabit Network Connection
    GENERAL.DRIVER: e1000e
    GENERAL.DRIVER-VERSION: 3.2.6-k
    GENERAL.FIRMWARE-VERSION: 1.1-0
    GENERAL.HWADDR: <MAC 'eth0' [IF1]>
    GENERAL.MTU: 1500
    GENERAL.STATE: 20 (unavailable)
    GENERAL.REASON: 2 (Device is now managed)
    GENERAL.UDI: /sys/devices/pci0000:00/0000:00:19.0/net/eth0
    GENERAL.IP-IFACE:
    GENERAL.IS-SOFTWARE: no
    GENERAL.NM-MANAGED: yes
    GENERAL.AUTOCONNECT: yes
    GENERAL.FIRMWARE-MISSING: no
    GENERAL.NM-PLUGIN-MISSING: no
    GENERAL.PHYS-PORT-ID: --
    GENERAL.CONNECTION: --
    GENERAL.CON-UUID: --
    GENERAL.CON-PATH: --
    GENERAL.METERED: unknown
    CAPABILITIES.CARRIER-DETECT: yes
    CAPABILITIES.SPEED: unknown
    CAPABILITIES.IS-SOFTWARE: no
    WIRED-PROPERTIES.CARRIER: off
    CONNECTIONS.AVAILABLE-CONNECTION-PATHS:

    SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
    Sid Mi Phone <MAC 'Sid Mi Phone' [AN1]> Infra 6 2437 MHz 54 Mbit/s 100 ▂▄▆█ WPA2 no
    Sid <MAC 'Sid' [AC1]> Infra 10 2457 MHz 54 Mbit/s 56 ▂▄▆_ WPA1 WPA2 no
    Spark <MAC 'Spark' [AN3]> Infra 1 2412 MHz 54 Mbit/s 7 ▂___ WPA1 WPA2 no

    ##### NetworkManager.state ##############

    [main]
    NetworkingEnabled=true
    WirelessEnabled=true
    WWANEnabled=true
    WimaxEnabled=true

    ##### NetworkManager.conf ###############

    [main]
    plugins=ifupdown,keyfile,ofono
    dns=dnsmasq

    [ifupdown]
    managed=false

    ##### NetworkManager profiles ###########

    [[/etc/NetworkManager/system-connections/Sid Mi Phone]] (600 root)
    [connection] id=Sid Mi Phone | type=wifi | permissions=user:sid:;
    [wifi] mac-address=<MAC 'wlan0' [IF2]> | mac-address-blacklist= | ssid=Sid Mi Phone
    [ipv4] method=auto
    [ipv6] method=auto

    [[/etc/NetworkManager/system-connections/Sid]] (600 root)
    [connection] id=Sid | type=wifi | permissions=
    [wifi] mac-address=<MAC 'wlan0' [IF2]> | mac-address-blacklist= | ssid=Sid
    [ipv4] method=auto
    [ipv6] method=auto

    ##### iw reg get ########################

    Region: Asia/Kolkata (based on set time zone)

    country 00: DFS-UNSET
    (2402 - 2472 @ 40), (N/A, 20), (N/A)
    (2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
    (2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
    (5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
    (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, NO-IR
    (5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, NO-IR
    (5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
    (57240 - 63720 @ 2160), (N/A, 0), (N/A)

    ##### iwlist channels ###################

    lo no frequency information.

    eth0 no frequency information.

    wlan0 14 channels in total; available frequencies :
    Channel 01 : 2.412 GHz
    Channel 02 : 2.417 GHz
    Channel 03 : 2.422 GHz
    Channel 04 : 2.427 GHz
    Channel 05 : 2.432 GHz
    Channel 06 : 2.437 GHz
    Channel 07 : 2.442 GHz
    Channel 08 : 2.447 GHz
    Channel 09 : 2.452 GHz
    Channel 10 : 2.457 GHz
    Channel 11 : 2.462 GHz
    Channel 12 : 2.467 GHz
    Channel 13 : 2.472 GHz
    Channel 14 : 2.484 GHz

    ##### iwlist scan #######################

    lo Interface doesn't support scanning.

    eth0 Interface doesn't support scanning.

    Channel occupancy:

    1 APs on Frequency:2.457 GHz (Channel 10)

    wlan0 Scan completed :
    Cell 01 - Address: <MAC 'Sid' [AC1]>
    ESSID:"Sid"
    Protocol:IEEE 802.11bgn
    Mode:Master
    Frequency:2.457 GHz (Channel 10)
    Encryption key:on
    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
    9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
    48 Mb/s; 54 Mb/s
    Extra:wpa_ie=dd1a0050f20101000050f20202000050f2020050f20401000050f202
    IE: WPA Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : TKIP CCMP
    Authentication Suites (1) : PSK
    Extra:rsn_ie=30180100000fac020200000fac02000fac040100000fac020000
    IE: IEEE 802.11i/WPA2 Version 1
    Group Cipher : TKIP
    Pairwise Ciphers (2) : TKIP CCMP
    Authentication Suites (1) : PSK
    Signal level=57/100

    ##### module infos ######################

    [r8712u]
    filename: /lib/modules/4.4.0-23-generic/kernel/drivers/staging/rtl8712/r8712u.ko
    firmware: rtlwifi/rtl8712u.bin
    author: Larry Finger
    description: rtl871x wireless lan driver
    license: GPL
    srcversion: C6F0E0D1D849C2145DD5F72
    depends:
    staging: Y
    intree: Y
    vermagic: 4.4.0-23-generic SMP mod_unload modversions 686
    parm: wifi_test:int
    parm: video_mode:int
    parm: chip_version:int
    parm: rfintfs:int
    parm: lbkmode:int
    parm: hci:int
    parm: network_mode:int
    parm: channel:int
    parm: mp_mode:int
    parm: wmm_enable:int
    parm: vrtl_carrier_sense:int
    parm: vcs_type:int
    parm: busy_thresh:int
    parm: ht_enable:int
    parm: cbw40_enable:int
    parm: ampdu_enable:int
    parm: rf_config:int
    parm: power_mgnt:int
    parm: low_power:int
    parm: ifname: Net interface name, wlan%d=default (string)
    parm: initmac:MAC-Address, default: use FUSE (charp)

    [cfg80211]
    filename: /lib/modules/4.4.0-23-generic/kernel/net/wireless/cfg80211.ko
    description: wireless configuration support
    license: GPL
    author: Johannes Berg
    srcversion: 25A45701AAA64DAC1E47D9D
    depends:
    intree: Y
    vermagic: 4.4.0-23-generic SMP mod_unload modversions 686
    parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
    parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

    ##### module parameters #################

    [r8712u]
    ampdu_enable: 1
    busy_thresh: 40
    cbw40_enable: 1
    channel: 1
    chip_version: 2
    hci: 1
    ht_enable: 1
    ifname: wlan%d
    initmac: (null)
    lbkmode: 0
    low_power: 0
    mp_mode: 0
    network_mode: 0
    power_mgnt: 0
    rf_config: 1
    rfintfs: 2
    vcs_type: 1
    video_mode: 1
    vrtl_carrier_sense: 2
    wifi_test: 0
    wmm_enable: 0

    [cfg80211]
    cfg80211_disable_40mhz_24ghz: N
    ieee80211_regdom: 00

    ##### /etc/modules ######################

    lp

    ##### modprobe options ##################

    [/etc/modprobe.d/blacklist-ath_pci.conf]
    blacklist ath_pci

    [/etc/modprobe.d/blacklist-bcm43.conf]
    blacklist b43
    blacklist b43legacy
    blacklist ssb
    blacklist bcm43xx
    blacklist brcm80211
    blacklist brcmfmac
    blacklist brcmsmac
    blacklist bcma

    [/etc/modprobe.d/blacklist.conf]
    blacklist evbug
    blacklist usbmouse
    blacklist usbkbd
    blacklist eepro100
    blacklist de4x5
    blacklist eth1394
    blacklist snd_intel8x0m
    blacklist snd_aw2
    blacklist i2c_i801
    blacklist prism54
    blacklist garmin_gps
    blacklist asus_acpi
    blacklist snd_pcsp
    blacklist pcspkr
    blacklist amd76x_edac

    [/etc/modprobe.d/blacklist-rare-network.conf]
    alias net-pf-3 off
    alias net-pf-6 off
    alias net-pf-9 off
    alias net-pf-11 off
    alias net-pf-12 off
    alias net-pf-19 off
    alias net-pf-21 off
    alias net-pf-36 off

    [/etc/modprobe.d/iwlwifi.conf]
    remove iwlwifi
    (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod)
    && /sbin/modprobe -r mac80211

    [/etc/modprobe.d/mlx4.conf]
    softdep mlx4_core post: mlx4_en

    ##### rc.local ##########################

    exit 0

    ##### pm-utils ##########################

    ##### udev rules ########################

    [/etc/udev/rules.d/70-persistent-net.rules]
    # PCI device 0x8086:0x104b (e1000e)
    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF1]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
    # USB device 0x:0x (r8712u)
    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF2]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

    ##### dmesg #############################

    [ 252.098895] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
    [ 252.099852] r8712u: register rtl8712_netdev_ops to netdev_ops
    [ 252.099859] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
    [ 252.100405] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
    [ 252.509037] usb 1-3.3: r8712u: CustomerID = 0x0010
    [ 252.509045] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
    [ 252.509051] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
    [ 252.621139] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
    [ 253.328535] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
    [ 253.329400] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
    [ 253.436347] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 6 times)
    [ 354.796336] e1000e: eth0 NIC Link is Down
    [ 355.289572] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready (repeated 2 times)
    [ 355.766426] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 7 times)
    [ 604.735424] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
    [ 1020.413046] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 2 times)
    [ 1447.413629] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
    [ 1447.414604] r8712u: register rtl8712_netdev_ops to netdev_ops
    [ 1447.414610] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
    [ 1447.415169] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
    [ 1447.865302] usb 1-3.3: r8712u: CustomerID = 0x0010
    [ 1447.865310] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
    [ 1447.865316] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
    [ 1448.079037] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
    [ 1448.784428] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
    [ 1448.785170] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
    [ 1448.892384] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 3 times)
    [ 1732.652796] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
    [ 1732.653771] r8712u: register rtl8712_netdev_ops to netdev_ops
    [ 1732.653777] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
    [ 1732.654323] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
    [ 1733.065831] usb 1-3.3: r8712u: CustomerID = 0x0010
    [ 1733.065839] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
    [ 1733.065845] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
    [ 1733.101181] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
    [ 1733.808456] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
    [ 1733.809196] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
    [ 1733.916265] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 4 times)
    [ 2012.843797] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

    ########## wireless info END ############









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      I upgraded from Ubuntu 15.10 to 16.04 and my wifi has stopped working. I have an Asus USB Wifi Adapter and it is able to detect the wifi signals. However, upon clicking on my home wifi I am unable to connect to it. I have had a look at this issue WiFi (r8712u) is only working after doing rmmod & modprobe but had no success.



      I am providing the below information and hoping the ubuntu community can help me here! Please let me know if you need any more information to solve the issue.



      lshw -class network



      *-network               
      description: Ethernet interface
      product: 82566DC Gigabit Network Connection
      vendor: Intel Corporation
      physical id: 19
      bus info: pci@0000:00:19.0
      logical name: eth0
      version: 02
      serial: 00:19:d1:85:4b:d4
      capacity: 1Gbit/s
      width: 32 bits
      clock: 33MHz
      capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
      configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=1.1-0 latency=0 link=no multicast=yes port=twisted pair
      resources: irq:29 memory:90300000-9031ffff memory:90324000-90324fff ioport:30c0(size=32)
      *-network
      description: Wireless interface
      physical id: 1
      bus info: usb@1:3.3
      logical name: wlan0
      serial: f4:6d:04:8b:44:b1
      capabilities: ethernet physical wireless
      configuration: broadcast=yes driver=r8712u multicast=yes wireless=unassociated


      lsusb



      Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
      Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 001 Device 005: ID 0bc2:3300 Seagate RSS LLC
      Bus 001 Device 004: ID 0b05:1791 ASUSTek Computer, Inc. WL-167G v3 802.11n Adapter [Realtek RTL8188SU]
      Bus 001 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
      Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
      Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
      Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


      lspci



      00:00.0 Host bridge: Intel Corporation 82P965/G965 Memory Controller Hub (rev 02)
      00:02.0 VGA compatible controller: Intel Corporation 82G965 Integrated Graphics Controller (rev 02)
      00:03.0 Communication controller: Intel Corporation 82P965/G965 HECI Controller (rev 02)
      00:19.0 Ethernet controller: Intel Corporation 82566DC Gigabit Network Connection (rev 02)
      00:1a.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02)
      00:1a.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
      00:1a.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
      00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
      00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
      00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
      00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 02)
      00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 02)
      00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 02)
      00:1d.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
      00:1d.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
      00:1d.2 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
      00:1d.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
      00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2)
      00:1f.0 ISA bridge: Intel Corporation 82801HB/HR (ICH8/R) LPC Interface Controller (rev 02)
      00:1f.2 IDE interface: Intel Corporation 82801H (ICH8 Family) 4 port SATA Controller [IDE mode] (rev 02)
      00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
      00:1f.5 IDE interface: Intel Corporation 82801HR/HO/HH (ICH8R/DO/DH) 2 port SATA Controller [IDE mode] (rev 02)
      02:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6101/6102 single-port PATA133 interface (rev b1)
      06:00.0 Multimedia audio controller: ESS Technology ES1938/ES1946/ES1969 Solo-1 Audiodrive (rev 02)
      06:03.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22A IEEE-1394a-2000 Controller (PHY/Link) [iOHCI-Lynx]


      rmmod r8712u && sudo modprobe r8712u ( I have tried this as suggested in the above mentioned link but did not have any success. I have even tried restarting the network manager as mentioned in the link but had no success even there).



      [ 1732.118252] usbcore: deregistering interface driver r8712u
      [ 1732.436048] usb 1-3.3: reset high-speed USB device number 4 using ehci-pci
      [ 1732.652796] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
      [ 1732.653771] r8712u: register rtl8712_netdev_ops to netdev_ops
      [ 1732.653777] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
      [ 1732.654323] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
      [ 1733.065831] usb 1-3.3: r8712u: CustomerID = 0x0010
      [ 1733.065839] usb 1-3.3: r8712u: MAC Address from efuse = f4:6d:04:8b:44:b1
      [ 1733.065845] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
      [ 1733.069364] usbcore: registered new interface driver r8712u
      [ 1733.101181] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
      [ 1733.808456] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
      [ 1733.809196] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
      [ 1733.916265] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
      [ 1733.973323] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready


      (An interesting piece of information here might be that when I turn the hotspot on on my phone, I am able to connect to my phone's wifi with the same setup. However, it is the home wifi I have been having problem connecting to. I have checked and rechecked the password I am entering and it is correct.)



      Edit: Adding the wireless-info.txt contents here.



      ########## wireless info START ##########

      Report from: 10 Jun 2016 00:34 IST +0530

      Booted last: 10 Jun 2016 00:00 IST +0530

      Script from: 26 May 2016 21:56 UTC +0000

      ##### release ###########################

      Distributor ID: Ubuntu
      Description: Ubuntu 16.04 LTS
      Release: 16.04
      Codename: xenial

      ##### kernel ############################

      Linux 4.4.0-23-generic #41-Ubuntu SMP Mon May 16 23:03:32 UTC 2016 i686 i686 i686 GNU/Linux

      Parameters: ro, quiet, splash, vt.handoff=7

      ##### desktop ###########################

      sed: can't read /root/.dmrc: No such file or directory

      Could not be determined.

      ##### lspci #############################

      00:19.0 Ethernet controller [0200]: Intel Corporation 82566DC Gigabit Network Connection [8086:104b] (rev 02)
      Subsystem: Intel Corporation 82566DC Gigabit Network Connection [8086:0001]
      Kernel driver in use: e1000e

      ##### lsusb #############################

      Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
      Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 001 Device 005: ID 0bc2:3300 Seagate RSS LLC
      Bus 001 Device 004: ID 0b05:1791 ASUSTek Computer, Inc. WL-167G v3 802.11n Adapter [Realtek RTL8188SU]
      Bus 001 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
      Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
      Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
      Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

      ##### PCMCIA card info ##################

      ##### rfkill ############################

      ##### lsmod #############################

      r8712u 159744 0
      cfg80211 499712 0

      ##### interfaces ########################

      auto lo
      iface lo inet loopback

      ##### ifconfig ##########################

      eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF1]>
      UP BROADCAST MULTICAST MTU:1500 Metric:1
      RX packets:0 errors:0 dropped:0 overruns:0 frame:0
      TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
      Interrupt:20 Memory:90300000-90320000

      wlan0 Link encap:Ethernet HWaddr <MAC 'wlan0' [IF2]>
      UP BROADCAST MULTICAST MTU:1500 Metric:1
      RX packets:5894 errors:0 dropped:2201 overruns:0 frame:0
      TX packets:6662 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:1879837 (1.8 MB) TX bytes:1148881 (1.1 MB)

      ##### iwconfig ##########################

      lo no wireless extensions.

      eth0 no wireless extensions.

      wlan0 unassociated Nickname:"rtl_wifi"
      Mode:Managed Access Point: Not-Associated Sensitivity:0/0
      Retry:off RTS thr:off Fragment thr:off
      Encryption key:off
      Power Management:off
      Link Quality:0 Signal level:0 Noise level:0
      Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
      Tx excessive retries:0 Invalid misc:0 Missed beacon:0

      ##### route #############################

      Kernel IP routing table
      Destination Gateway Genmask Flags Metric Ref Use Iface

      ##### resolv.conf #######################

      nameserver 127.0.1.1

      ##### network managers ##################

      Installed:

      NetworkManager

      Running:

      root 2451 1 0 Jun09 ? 00:00:01 /usr/sbin/NetworkManager --no-daemon

      ##### NetworkManager info ###############

      GENERAL.DEVICE: wlan0
      GENERAL.TYPE: wifi
      GENERAL.NM-TYPE: NMDeviceWifi
      GENERAL.VENDOR: Manufacturer Realtek
      GENERAL.PRODUCT: ASUS WL-167G V3
      GENERAL.DRIVER: r8712u
      GENERAL.DRIVER-VERSION:
      GENERAL.FIRMWARE-VERSION:
      GENERAL.HWADDR: <MAC 'wlan0' [IF2]>
      GENERAL.MTU: 1500
      GENERAL.STATE: 30 (disconnected)
      GENERAL.REASON: 39 (Device disconnected by user or client)
      GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1a.7/usb1/1-3/1-3.3/1-3.3:1.0/net/wlan0
      GENERAL.IP-IFACE:
      GENERAL.IS-SOFTWARE: no
      GENERAL.NM-MANAGED: yes
      GENERAL.AUTOCONNECT: no
      GENERAL.FIRMWARE-MISSING: no
      GENERAL.NM-PLUGIN-MISSING: no
      GENERAL.PHYS-PORT-ID: --
      GENERAL.CONNECTION: --
      GENERAL.CON-UUID: --
      GENERAL.CON-PATH: --
      GENERAL.METERED: unknown
      CAPABILITIES.CARRIER-DETECT: no
      CAPABILITIES.SPEED: unknown
      CAPABILITIES.IS-SOFTWARE: no
      WIFI-PROPERTIES.WEP: yes
      WIFI-PROPERTIES.WPA: yes
      WIFI-PROPERTIES.WPA2: yes
      WIFI-PROPERTIES.TKIP: yes
      WIFI-PROPERTIES.CCMP: yes
      WIFI-PROPERTIES.AP: no
      WIFI-PROPERTIES.ADHOC: yes
      WIFI-PROPERTIES.2GHZ: yes
      WIFI-PROPERTIES.5GHZ: no
      CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0,2}
      CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 81d133ad-d1c3-4ebf-a108-7837c7e5e881 | Sid Mi Phone
      CONNECTIONS.AVAILABLE-CONNECTIONS[2]: 4a6effa2-47de-4606-bdd6-13d9afcba61e | Sid

      GENERAL.DEVICE: eth0
      GENERAL.TYPE: ethernet
      GENERAL.NM-TYPE: NMDeviceEthernet
      GENERAL.VENDOR: Intel Corporation
      GENERAL.PRODUCT: 82566DC Gigabit Network Connection
      GENERAL.DRIVER: e1000e
      GENERAL.DRIVER-VERSION: 3.2.6-k
      GENERAL.FIRMWARE-VERSION: 1.1-0
      GENERAL.HWADDR: <MAC 'eth0' [IF1]>
      GENERAL.MTU: 1500
      GENERAL.STATE: 20 (unavailable)
      GENERAL.REASON: 2 (Device is now managed)
      GENERAL.UDI: /sys/devices/pci0000:00/0000:00:19.0/net/eth0
      GENERAL.IP-IFACE:
      GENERAL.IS-SOFTWARE: no
      GENERAL.NM-MANAGED: yes
      GENERAL.AUTOCONNECT: yes
      GENERAL.FIRMWARE-MISSING: no
      GENERAL.NM-PLUGIN-MISSING: no
      GENERAL.PHYS-PORT-ID: --
      GENERAL.CONNECTION: --
      GENERAL.CON-UUID: --
      GENERAL.CON-PATH: --
      GENERAL.METERED: unknown
      CAPABILITIES.CARRIER-DETECT: yes
      CAPABILITIES.SPEED: unknown
      CAPABILITIES.IS-SOFTWARE: no
      WIRED-PROPERTIES.CARRIER: off
      CONNECTIONS.AVAILABLE-CONNECTION-PATHS:

      SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
      Sid Mi Phone <MAC 'Sid Mi Phone' [AN1]> Infra 6 2437 MHz 54 Mbit/s 100 ▂▄▆█ WPA2 no
      Sid <MAC 'Sid' [AC1]> Infra 10 2457 MHz 54 Mbit/s 56 ▂▄▆_ WPA1 WPA2 no
      Spark <MAC 'Spark' [AN3]> Infra 1 2412 MHz 54 Mbit/s 7 ▂___ WPA1 WPA2 no

      ##### NetworkManager.state ##############

      [main]
      NetworkingEnabled=true
      WirelessEnabled=true
      WWANEnabled=true
      WimaxEnabled=true

      ##### NetworkManager.conf ###############

      [main]
      plugins=ifupdown,keyfile,ofono
      dns=dnsmasq

      [ifupdown]
      managed=false

      ##### NetworkManager profiles ###########

      [[/etc/NetworkManager/system-connections/Sid Mi Phone]] (600 root)
      [connection] id=Sid Mi Phone | type=wifi | permissions=user:sid:;
      [wifi] mac-address=<MAC 'wlan0' [IF2]> | mac-address-blacklist= | ssid=Sid Mi Phone
      [ipv4] method=auto
      [ipv6] method=auto

      [[/etc/NetworkManager/system-connections/Sid]] (600 root)
      [connection] id=Sid | type=wifi | permissions=
      [wifi] mac-address=<MAC 'wlan0' [IF2]> | mac-address-blacklist= | ssid=Sid
      [ipv4] method=auto
      [ipv6] method=auto

      ##### iw reg get ########################

      Region: Asia/Kolkata (based on set time zone)

      country 00: DFS-UNSET
      (2402 - 2472 @ 40), (N/A, 20), (N/A)
      (2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
      (2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
      (5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
      (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, NO-IR
      (5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, NO-IR
      (5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
      (57240 - 63720 @ 2160), (N/A, 0), (N/A)

      ##### iwlist channels ###################

      lo no frequency information.

      eth0 no frequency information.

      wlan0 14 channels in total; available frequencies :
      Channel 01 : 2.412 GHz
      Channel 02 : 2.417 GHz
      Channel 03 : 2.422 GHz
      Channel 04 : 2.427 GHz
      Channel 05 : 2.432 GHz
      Channel 06 : 2.437 GHz
      Channel 07 : 2.442 GHz
      Channel 08 : 2.447 GHz
      Channel 09 : 2.452 GHz
      Channel 10 : 2.457 GHz
      Channel 11 : 2.462 GHz
      Channel 12 : 2.467 GHz
      Channel 13 : 2.472 GHz
      Channel 14 : 2.484 GHz

      ##### iwlist scan #######################

      lo Interface doesn't support scanning.

      eth0 Interface doesn't support scanning.

      Channel occupancy:

      1 APs on Frequency:2.457 GHz (Channel 10)

      wlan0 Scan completed :
      Cell 01 - Address: <MAC 'Sid' [AC1]>
      ESSID:"Sid"
      Protocol:IEEE 802.11bgn
      Mode:Master
      Frequency:2.457 GHz (Channel 10)
      Encryption key:on
      Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
      9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
      48 Mb/s; 54 Mb/s
      Extra:wpa_ie=dd1a0050f20101000050f20202000050f2020050f20401000050f202
      IE: WPA Version 1
      Group Cipher : TKIP
      Pairwise Ciphers (2) : TKIP CCMP
      Authentication Suites (1) : PSK
      Extra:rsn_ie=30180100000fac020200000fac02000fac040100000fac020000
      IE: IEEE 802.11i/WPA2 Version 1
      Group Cipher : TKIP
      Pairwise Ciphers (2) : TKIP CCMP
      Authentication Suites (1) : PSK
      Signal level=57/100

      ##### module infos ######################

      [r8712u]
      filename: /lib/modules/4.4.0-23-generic/kernel/drivers/staging/rtl8712/r8712u.ko
      firmware: rtlwifi/rtl8712u.bin
      author: Larry Finger
      description: rtl871x wireless lan driver
      license: GPL
      srcversion: C6F0E0D1D849C2145DD5F72
      depends:
      staging: Y
      intree: Y
      vermagic: 4.4.0-23-generic SMP mod_unload modversions 686
      parm: wifi_test:int
      parm: video_mode:int
      parm: chip_version:int
      parm: rfintfs:int
      parm: lbkmode:int
      parm: hci:int
      parm: network_mode:int
      parm: channel:int
      parm: mp_mode:int
      parm: wmm_enable:int
      parm: vrtl_carrier_sense:int
      parm: vcs_type:int
      parm: busy_thresh:int
      parm: ht_enable:int
      parm: cbw40_enable:int
      parm: ampdu_enable:int
      parm: rf_config:int
      parm: power_mgnt:int
      parm: low_power:int
      parm: ifname: Net interface name, wlan%d=default (string)
      parm: initmac:MAC-Address, default: use FUSE (charp)

      [cfg80211]
      filename: /lib/modules/4.4.0-23-generic/kernel/net/wireless/cfg80211.ko
      description: wireless configuration support
      license: GPL
      author: Johannes Berg
      srcversion: 25A45701AAA64DAC1E47D9D
      depends:
      intree: Y
      vermagic: 4.4.0-23-generic SMP mod_unload modversions 686
      parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
      parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

      ##### module parameters #################

      [r8712u]
      ampdu_enable: 1
      busy_thresh: 40
      cbw40_enable: 1
      channel: 1
      chip_version: 2
      hci: 1
      ht_enable: 1
      ifname: wlan%d
      initmac: (null)
      lbkmode: 0
      low_power: 0
      mp_mode: 0
      network_mode: 0
      power_mgnt: 0
      rf_config: 1
      rfintfs: 2
      vcs_type: 1
      video_mode: 1
      vrtl_carrier_sense: 2
      wifi_test: 0
      wmm_enable: 0

      [cfg80211]
      cfg80211_disable_40mhz_24ghz: N
      ieee80211_regdom: 00

      ##### /etc/modules ######################

      lp

      ##### modprobe options ##################

      [/etc/modprobe.d/blacklist-ath_pci.conf]
      blacklist ath_pci

      [/etc/modprobe.d/blacklist-bcm43.conf]
      blacklist b43
      blacklist b43legacy
      blacklist ssb
      blacklist bcm43xx
      blacklist brcm80211
      blacklist brcmfmac
      blacklist brcmsmac
      blacklist bcma

      [/etc/modprobe.d/blacklist.conf]
      blacklist evbug
      blacklist usbmouse
      blacklist usbkbd
      blacklist eepro100
      blacklist de4x5
      blacklist eth1394
      blacklist snd_intel8x0m
      blacklist snd_aw2
      blacklist i2c_i801
      blacklist prism54
      blacklist garmin_gps
      blacklist asus_acpi
      blacklist snd_pcsp
      blacklist pcspkr
      blacklist amd76x_edac

      [/etc/modprobe.d/blacklist-rare-network.conf]
      alias net-pf-3 off
      alias net-pf-6 off
      alias net-pf-9 off
      alias net-pf-11 off
      alias net-pf-12 off
      alias net-pf-19 off
      alias net-pf-21 off
      alias net-pf-36 off

      [/etc/modprobe.d/iwlwifi.conf]
      remove iwlwifi
      (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod)
      && /sbin/modprobe -r mac80211

      [/etc/modprobe.d/mlx4.conf]
      softdep mlx4_core post: mlx4_en

      ##### rc.local ##########################

      exit 0

      ##### pm-utils ##########################

      ##### udev rules ########################

      [/etc/udev/rules.d/70-persistent-net.rules]
      # PCI device 0x8086:0x104b (e1000e)
      SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF1]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
      # USB device 0x:0x (r8712u)
      SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF2]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

      ##### dmesg #############################

      [ 252.098895] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
      [ 252.099852] r8712u: register rtl8712_netdev_ops to netdev_ops
      [ 252.099859] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
      [ 252.100405] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
      [ 252.509037] usb 1-3.3: r8712u: CustomerID = 0x0010
      [ 252.509045] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
      [ 252.509051] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
      [ 252.621139] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
      [ 253.328535] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
      [ 253.329400] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
      [ 253.436347] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 6 times)
      [ 354.796336] e1000e: eth0 NIC Link is Down
      [ 355.289572] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready (repeated 2 times)
      [ 355.766426] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 7 times)
      [ 604.735424] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
      [ 1020.413046] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 2 times)
      [ 1447.413629] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
      [ 1447.414604] r8712u: register rtl8712_netdev_ops to netdev_ops
      [ 1447.414610] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
      [ 1447.415169] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
      [ 1447.865302] usb 1-3.3: r8712u: CustomerID = 0x0010
      [ 1447.865310] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
      [ 1447.865316] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
      [ 1448.079037] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
      [ 1448.784428] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
      [ 1448.785170] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
      [ 1448.892384] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 3 times)
      [ 1732.652796] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
      [ 1732.653771] r8712u: register rtl8712_netdev_ops to netdev_ops
      [ 1732.653777] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
      [ 1732.654323] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
      [ 1733.065831] usb 1-3.3: r8712u: CustomerID = 0x0010
      [ 1733.065839] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
      [ 1733.065845] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
      [ 1733.101181] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
      [ 1733.808456] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
      [ 1733.809196] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
      [ 1733.916265] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 4 times)
      [ 2012.843797] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

      ########## wireless info END ############









      share|improve this question
















      I upgraded from Ubuntu 15.10 to 16.04 and my wifi has stopped working. I have an Asus USB Wifi Adapter and it is able to detect the wifi signals. However, upon clicking on my home wifi I am unable to connect to it. I have had a look at this issue WiFi (r8712u) is only working after doing rmmod & modprobe but had no success.



      I am providing the below information and hoping the ubuntu community can help me here! Please let me know if you need any more information to solve the issue.



      lshw -class network



      *-network               
      description: Ethernet interface
      product: 82566DC Gigabit Network Connection
      vendor: Intel Corporation
      physical id: 19
      bus info: pci@0000:00:19.0
      logical name: eth0
      version: 02
      serial: 00:19:d1:85:4b:d4
      capacity: 1Gbit/s
      width: 32 bits
      clock: 33MHz
      capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
      configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=1.1-0 latency=0 link=no multicast=yes port=twisted pair
      resources: irq:29 memory:90300000-9031ffff memory:90324000-90324fff ioport:30c0(size=32)
      *-network
      description: Wireless interface
      physical id: 1
      bus info: usb@1:3.3
      logical name: wlan0
      serial: f4:6d:04:8b:44:b1
      capabilities: ethernet physical wireless
      configuration: broadcast=yes driver=r8712u multicast=yes wireless=unassociated


      lsusb



      Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
      Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 001 Device 005: ID 0bc2:3300 Seagate RSS LLC
      Bus 001 Device 004: ID 0b05:1791 ASUSTek Computer, Inc. WL-167G v3 802.11n Adapter [Realtek RTL8188SU]
      Bus 001 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
      Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
      Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
      Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub


      lspci



      00:00.0 Host bridge: Intel Corporation 82P965/G965 Memory Controller Hub (rev 02)
      00:02.0 VGA compatible controller: Intel Corporation 82G965 Integrated Graphics Controller (rev 02)
      00:03.0 Communication controller: Intel Corporation 82P965/G965 HECI Controller (rev 02)
      00:19.0 Ethernet controller: Intel Corporation 82566DC Gigabit Network Connection (rev 02)
      00:1a.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 02)
      00:1a.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
      00:1a.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 02)
      00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)
      00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 02)
      00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 02)
      00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 02)
      00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 02)
      00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 02)
      00:1d.0 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
      00:1d.1 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
      00:1d.2 USB controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
      00:1d.7 USB controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
      00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev f2)
      00:1f.0 ISA bridge: Intel Corporation 82801HB/HR (ICH8/R) LPC Interface Controller (rev 02)
      00:1f.2 IDE interface: Intel Corporation 82801H (ICH8 Family) 4 port SATA Controller [IDE mode] (rev 02)
      00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 02)
      00:1f.5 IDE interface: Intel Corporation 82801HR/HO/HH (ICH8R/DO/DH) 2 port SATA Controller [IDE mode] (rev 02)
      02:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6101/6102 single-port PATA133 interface (rev b1)
      06:00.0 Multimedia audio controller: ESS Technology ES1938/ES1946/ES1969 Solo-1 Audiodrive (rev 02)
      06:03.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22A IEEE-1394a-2000 Controller (PHY/Link) [iOHCI-Lynx]


      rmmod r8712u && sudo modprobe r8712u ( I have tried this as suggested in the above mentioned link but did not have any success. I have even tried restarting the network manager as mentioned in the link but had no success even there).



      [ 1732.118252] usbcore: deregistering interface driver r8712u
      [ 1732.436048] usb 1-3.3: reset high-speed USB device number 4 using ehci-pci
      [ 1732.652796] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
      [ 1732.653771] r8712u: register rtl8712_netdev_ops to netdev_ops
      [ 1732.653777] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
      [ 1732.654323] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
      [ 1733.065831] usb 1-3.3: r8712u: CustomerID = 0x0010
      [ 1733.065839] usb 1-3.3: r8712u: MAC Address from efuse = f4:6d:04:8b:44:b1
      [ 1733.065845] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
      [ 1733.069364] usbcore: registered new interface driver r8712u
      [ 1733.101181] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
      [ 1733.808456] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
      [ 1733.809196] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
      [ 1733.916265] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
      [ 1733.973323] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready


      (An interesting piece of information here might be that when I turn the hotspot on on my phone, I am able to connect to my phone's wifi with the same setup. However, it is the home wifi I have been having problem connecting to. I have checked and rechecked the password I am entering and it is correct.)



      Edit: Adding the wireless-info.txt contents here.



      ########## wireless info START ##########

      Report from: 10 Jun 2016 00:34 IST +0530

      Booted last: 10 Jun 2016 00:00 IST +0530

      Script from: 26 May 2016 21:56 UTC +0000

      ##### release ###########################

      Distributor ID: Ubuntu
      Description: Ubuntu 16.04 LTS
      Release: 16.04
      Codename: xenial

      ##### kernel ############################

      Linux 4.4.0-23-generic #41-Ubuntu SMP Mon May 16 23:03:32 UTC 2016 i686 i686 i686 GNU/Linux

      Parameters: ro, quiet, splash, vt.handoff=7

      ##### desktop ###########################

      sed: can't read /root/.dmrc: No such file or directory

      Could not be determined.

      ##### lspci #############################

      00:19.0 Ethernet controller [0200]: Intel Corporation 82566DC Gigabit Network Connection [8086:104b] (rev 02)
      Subsystem: Intel Corporation 82566DC Gigabit Network Connection [8086:0001]
      Kernel driver in use: e1000e

      ##### lsusb #############################

      Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
      Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 001 Device 005: ID 0bc2:3300 Seagate RSS LLC
      Bus 001 Device 004: ID 0b05:1791 ASUSTek Computer, Inc. WL-167G v3 802.11n Adapter [Realtek RTL8188SU]
      Bus 001 Device 003: ID 046d:c52f Logitech, Inc. Unifying Receiver
      Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
      Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
      Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
      Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

      ##### PCMCIA card info ##################

      ##### rfkill ############################

      ##### lsmod #############################

      r8712u 159744 0
      cfg80211 499712 0

      ##### interfaces ########################

      auto lo
      iface lo inet loopback

      ##### ifconfig ##########################

      eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF1]>
      UP BROADCAST MULTICAST MTU:1500 Metric:1
      RX packets:0 errors:0 dropped:0 overruns:0 frame:0
      TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
      Interrupt:20 Memory:90300000-90320000

      wlan0 Link encap:Ethernet HWaddr <MAC 'wlan0' [IF2]>
      UP BROADCAST MULTICAST MTU:1500 Metric:1
      RX packets:5894 errors:0 dropped:2201 overruns:0 frame:0
      TX packets:6662 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000
      RX bytes:1879837 (1.8 MB) TX bytes:1148881 (1.1 MB)

      ##### iwconfig ##########################

      lo no wireless extensions.

      eth0 no wireless extensions.

      wlan0 unassociated Nickname:"rtl_wifi"
      Mode:Managed Access Point: Not-Associated Sensitivity:0/0
      Retry:off RTS thr:off Fragment thr:off
      Encryption key:off
      Power Management:off
      Link Quality:0 Signal level:0 Noise level:0
      Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
      Tx excessive retries:0 Invalid misc:0 Missed beacon:0

      ##### route #############################

      Kernel IP routing table
      Destination Gateway Genmask Flags Metric Ref Use Iface

      ##### resolv.conf #######################

      nameserver 127.0.1.1

      ##### network managers ##################

      Installed:

      NetworkManager

      Running:

      root 2451 1 0 Jun09 ? 00:00:01 /usr/sbin/NetworkManager --no-daemon

      ##### NetworkManager info ###############

      GENERAL.DEVICE: wlan0
      GENERAL.TYPE: wifi
      GENERAL.NM-TYPE: NMDeviceWifi
      GENERAL.VENDOR: Manufacturer Realtek
      GENERAL.PRODUCT: ASUS WL-167G V3
      GENERAL.DRIVER: r8712u
      GENERAL.DRIVER-VERSION:
      GENERAL.FIRMWARE-VERSION:
      GENERAL.HWADDR: <MAC 'wlan0' [IF2]>
      GENERAL.MTU: 1500
      GENERAL.STATE: 30 (disconnected)
      GENERAL.REASON: 39 (Device disconnected by user or client)
      GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1a.7/usb1/1-3/1-3.3/1-3.3:1.0/net/wlan0
      GENERAL.IP-IFACE:
      GENERAL.IS-SOFTWARE: no
      GENERAL.NM-MANAGED: yes
      GENERAL.AUTOCONNECT: no
      GENERAL.FIRMWARE-MISSING: no
      GENERAL.NM-PLUGIN-MISSING: no
      GENERAL.PHYS-PORT-ID: --
      GENERAL.CONNECTION: --
      GENERAL.CON-UUID: --
      GENERAL.CON-PATH: --
      GENERAL.METERED: unknown
      CAPABILITIES.CARRIER-DETECT: no
      CAPABILITIES.SPEED: unknown
      CAPABILITIES.IS-SOFTWARE: no
      WIFI-PROPERTIES.WEP: yes
      WIFI-PROPERTIES.WPA: yes
      WIFI-PROPERTIES.WPA2: yes
      WIFI-PROPERTIES.TKIP: yes
      WIFI-PROPERTIES.CCMP: yes
      WIFI-PROPERTIES.AP: no
      WIFI-PROPERTIES.ADHOC: yes
      WIFI-PROPERTIES.2GHZ: yes
      WIFI-PROPERTIES.5GHZ: no
      CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{0,2}
      CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 81d133ad-d1c3-4ebf-a108-7837c7e5e881 | Sid Mi Phone
      CONNECTIONS.AVAILABLE-CONNECTIONS[2]: 4a6effa2-47de-4606-bdd6-13d9afcba61e | Sid

      GENERAL.DEVICE: eth0
      GENERAL.TYPE: ethernet
      GENERAL.NM-TYPE: NMDeviceEthernet
      GENERAL.VENDOR: Intel Corporation
      GENERAL.PRODUCT: 82566DC Gigabit Network Connection
      GENERAL.DRIVER: e1000e
      GENERAL.DRIVER-VERSION: 3.2.6-k
      GENERAL.FIRMWARE-VERSION: 1.1-0
      GENERAL.HWADDR: <MAC 'eth0' [IF1]>
      GENERAL.MTU: 1500
      GENERAL.STATE: 20 (unavailable)
      GENERAL.REASON: 2 (Device is now managed)
      GENERAL.UDI: /sys/devices/pci0000:00/0000:00:19.0/net/eth0
      GENERAL.IP-IFACE:
      GENERAL.IS-SOFTWARE: no
      GENERAL.NM-MANAGED: yes
      GENERAL.AUTOCONNECT: yes
      GENERAL.FIRMWARE-MISSING: no
      GENERAL.NM-PLUGIN-MISSING: no
      GENERAL.PHYS-PORT-ID: --
      GENERAL.CONNECTION: --
      GENERAL.CON-UUID: --
      GENERAL.CON-PATH: --
      GENERAL.METERED: unknown
      CAPABILITIES.CARRIER-DETECT: yes
      CAPABILITIES.SPEED: unknown
      CAPABILITIES.IS-SOFTWARE: no
      WIRED-PROPERTIES.CARRIER: off
      CONNECTIONS.AVAILABLE-CONNECTION-PATHS:

      SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE *
      Sid Mi Phone <MAC 'Sid Mi Phone' [AN1]> Infra 6 2437 MHz 54 Mbit/s 100 ▂▄▆█ WPA2 no
      Sid <MAC 'Sid' [AC1]> Infra 10 2457 MHz 54 Mbit/s 56 ▂▄▆_ WPA1 WPA2 no
      Spark <MAC 'Spark' [AN3]> Infra 1 2412 MHz 54 Mbit/s 7 ▂___ WPA1 WPA2 no

      ##### NetworkManager.state ##############

      [main]
      NetworkingEnabled=true
      WirelessEnabled=true
      WWANEnabled=true
      WimaxEnabled=true

      ##### NetworkManager.conf ###############

      [main]
      plugins=ifupdown,keyfile,ofono
      dns=dnsmasq

      [ifupdown]
      managed=false

      ##### NetworkManager profiles ###########

      [[/etc/NetworkManager/system-connections/Sid Mi Phone]] (600 root)
      [connection] id=Sid Mi Phone | type=wifi | permissions=user:sid:;
      [wifi] mac-address=<MAC 'wlan0' [IF2]> | mac-address-blacklist= | ssid=Sid Mi Phone
      [ipv4] method=auto
      [ipv6] method=auto

      [[/etc/NetworkManager/system-connections/Sid]] (600 root)
      [connection] id=Sid | type=wifi | permissions=
      [wifi] mac-address=<MAC 'wlan0' [IF2]> | mac-address-blacklist= | ssid=Sid
      [ipv4] method=auto
      [ipv6] method=auto

      ##### iw reg get ########################

      Region: Asia/Kolkata (based on set time zone)

      country 00: DFS-UNSET
      (2402 - 2472 @ 40), (N/A, 20), (N/A)
      (2457 - 2482 @ 40), (N/A, 20), (N/A), NO-IR
      (2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, NO-IR
      (5170 - 5250 @ 80), (N/A, 20), (N/A), NO-IR
      (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, NO-IR
      (5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, NO-IR
      (5735 - 5835 @ 80), (N/A, 20), (N/A), NO-IR
      (57240 - 63720 @ 2160), (N/A, 0), (N/A)

      ##### iwlist channels ###################

      lo no frequency information.

      eth0 no frequency information.

      wlan0 14 channels in total; available frequencies :
      Channel 01 : 2.412 GHz
      Channel 02 : 2.417 GHz
      Channel 03 : 2.422 GHz
      Channel 04 : 2.427 GHz
      Channel 05 : 2.432 GHz
      Channel 06 : 2.437 GHz
      Channel 07 : 2.442 GHz
      Channel 08 : 2.447 GHz
      Channel 09 : 2.452 GHz
      Channel 10 : 2.457 GHz
      Channel 11 : 2.462 GHz
      Channel 12 : 2.467 GHz
      Channel 13 : 2.472 GHz
      Channel 14 : 2.484 GHz

      ##### iwlist scan #######################

      lo Interface doesn't support scanning.

      eth0 Interface doesn't support scanning.

      Channel occupancy:

      1 APs on Frequency:2.457 GHz (Channel 10)

      wlan0 Scan completed :
      Cell 01 - Address: <MAC 'Sid' [AC1]>
      ESSID:"Sid"
      Protocol:IEEE 802.11bgn
      Mode:Master
      Frequency:2.457 GHz (Channel 10)
      Encryption key:on
      Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
      9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
      48 Mb/s; 54 Mb/s
      Extra:wpa_ie=dd1a0050f20101000050f20202000050f2020050f20401000050f202
      IE: WPA Version 1
      Group Cipher : TKIP
      Pairwise Ciphers (2) : TKIP CCMP
      Authentication Suites (1) : PSK
      Extra:rsn_ie=30180100000fac020200000fac02000fac040100000fac020000
      IE: IEEE 802.11i/WPA2 Version 1
      Group Cipher : TKIP
      Pairwise Ciphers (2) : TKIP CCMP
      Authentication Suites (1) : PSK
      Signal level=57/100

      ##### module infos ######################

      [r8712u]
      filename: /lib/modules/4.4.0-23-generic/kernel/drivers/staging/rtl8712/r8712u.ko
      firmware: rtlwifi/rtl8712u.bin
      author: Larry Finger
      description: rtl871x wireless lan driver
      license: GPL
      srcversion: C6F0E0D1D849C2145DD5F72
      depends:
      staging: Y
      intree: Y
      vermagic: 4.4.0-23-generic SMP mod_unload modversions 686
      parm: wifi_test:int
      parm: video_mode:int
      parm: chip_version:int
      parm: rfintfs:int
      parm: lbkmode:int
      parm: hci:int
      parm: network_mode:int
      parm: channel:int
      parm: mp_mode:int
      parm: wmm_enable:int
      parm: vrtl_carrier_sense:int
      parm: vcs_type:int
      parm: busy_thresh:int
      parm: ht_enable:int
      parm: cbw40_enable:int
      parm: ampdu_enable:int
      parm: rf_config:int
      parm: power_mgnt:int
      parm: low_power:int
      parm: ifname: Net interface name, wlan%d=default (string)
      parm: initmac:MAC-Address, default: use FUSE (charp)

      [cfg80211]
      filename: /lib/modules/4.4.0-23-generic/kernel/net/wireless/cfg80211.ko
      description: wireless configuration support
      license: GPL
      author: Johannes Berg
      srcversion: 25A45701AAA64DAC1E47D9D
      depends:
      intree: Y
      vermagic: 4.4.0-23-generic SMP mod_unload modversions 686
      parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
      parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)

      ##### module parameters #################

      [r8712u]
      ampdu_enable: 1
      busy_thresh: 40
      cbw40_enable: 1
      channel: 1
      chip_version: 2
      hci: 1
      ht_enable: 1
      ifname: wlan%d
      initmac: (null)
      lbkmode: 0
      low_power: 0
      mp_mode: 0
      network_mode: 0
      power_mgnt: 0
      rf_config: 1
      rfintfs: 2
      vcs_type: 1
      video_mode: 1
      vrtl_carrier_sense: 2
      wifi_test: 0
      wmm_enable: 0

      [cfg80211]
      cfg80211_disable_40mhz_24ghz: N
      ieee80211_regdom: 00

      ##### /etc/modules ######################

      lp

      ##### modprobe options ##################

      [/etc/modprobe.d/blacklist-ath_pci.conf]
      blacklist ath_pci

      [/etc/modprobe.d/blacklist-bcm43.conf]
      blacklist b43
      blacklist b43legacy
      blacklist ssb
      blacklist bcm43xx
      blacklist brcm80211
      blacklist brcmfmac
      blacklist brcmsmac
      blacklist bcma

      [/etc/modprobe.d/blacklist.conf]
      blacklist evbug
      blacklist usbmouse
      blacklist usbkbd
      blacklist eepro100
      blacklist de4x5
      blacklist eth1394
      blacklist snd_intel8x0m
      blacklist snd_aw2
      blacklist i2c_i801
      blacklist prism54
      blacklist garmin_gps
      blacklist asus_acpi
      blacklist snd_pcsp
      blacklist pcspkr
      blacklist amd76x_edac

      [/etc/modprobe.d/blacklist-rare-network.conf]
      alias net-pf-3 off
      alias net-pf-6 off
      alias net-pf-9 off
      alias net-pf-11 off
      alias net-pf-12 off
      alias net-pf-19 off
      alias net-pf-21 off
      alias net-pf-36 off

      [/etc/modprobe.d/iwlwifi.conf]
      remove iwlwifi
      (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod)
      && /sbin/modprobe -r mac80211

      [/etc/modprobe.d/mlx4.conf]
      softdep mlx4_core post: mlx4_en

      ##### rc.local ##########################

      exit 0

      ##### pm-utils ##########################

      ##### udev rules ########################

      [/etc/udev/rules.d/70-persistent-net.rules]
      # PCI device 0x8086:0x104b (e1000e)
      SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF1]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
      # USB device 0x:0x (r8712u)
      SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF2]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"

      ##### dmesg #############################

      [ 252.098895] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
      [ 252.099852] r8712u: register rtl8712_netdev_ops to netdev_ops
      [ 252.099859] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
      [ 252.100405] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
      [ 252.509037] usb 1-3.3: r8712u: CustomerID = 0x0010
      [ 252.509045] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
      [ 252.509051] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
      [ 252.621139] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
      [ 253.328535] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
      [ 253.329400] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
      [ 253.436347] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 6 times)
      [ 354.796336] e1000e: eth0 NIC Link is Down
      [ 355.289572] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready (repeated 2 times)
      [ 355.766426] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 7 times)
      [ 604.735424] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
      [ 1020.413046] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 2 times)
      [ 1447.413629] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
      [ 1447.414604] r8712u: register rtl8712_netdev_ops to netdev_ops
      [ 1447.414610] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
      [ 1447.415169] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
      [ 1447.865302] usb 1-3.3: r8712u: CustomerID = 0x0010
      [ 1447.865310] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
      [ 1447.865316] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
      [ 1448.079037] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
      [ 1448.784428] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
      [ 1448.785170] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
      [ 1448.892384] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 3 times)
      [ 1732.652796] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
      [ 1732.653771] r8712u: register rtl8712_netdev_ops to netdev_ops
      [ 1732.653777] usb 1-3.3: r8712u: USB_SPEED_HIGH with 4 endpoints
      [ 1732.654323] usb 1-3.3: r8712u: Boot from EFUSE: Autoload OK
      [ 1733.065831] usb 1-3.3: r8712u: CustomerID = 0x0010
      [ 1733.065839] usb 1-3.3: r8712u: MAC Address from efuse = <MAC 'wlan0' [IF2]>
      [ 1733.065845] usb 1-3.3: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
      [ 1733.101181] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
      [ 1733.808456] r8712u 1-3.3:1.0 wlan0: 1 RCR=0x153f00e
      [ 1733.809196] r8712u 1-3.3:1.0 wlan0: 2 RCR=0x553f00e
      [ 1733.916265] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready (repeated 4 times)
      [ 2012.843797] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready

      ########## wireless info END ############






      wireless 16.04






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      edited Apr 13 '17 at 12:23









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      asked Jun 9 '16 at 19:00









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          1 Answer
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          0














          This is the setup I use for my 16.04 wifi setup and works flawlessly.



          auto wlan0



          iface wlan0 inet static



          address 10.1.1.2



          netmask 255.0.0.0



          broadcast 10.255.255.255



          gateway 10.1.1.1



          wpa-ssid network-name



          wpa-psk pre-shared-key



          Change parameters accordingly of course






          share|improve this answer























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            1 Answer
            1






            active

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            active

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            active

            oldest

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            0














            This is the setup I use for my 16.04 wifi setup and works flawlessly.



            auto wlan0



            iface wlan0 inet static



            address 10.1.1.2



            netmask 255.0.0.0



            broadcast 10.255.255.255



            gateway 10.1.1.1



            wpa-ssid network-name



            wpa-psk pre-shared-key



            Change parameters accordingly of course






            share|improve this answer




























              0














              This is the setup I use for my 16.04 wifi setup and works flawlessly.



              auto wlan0



              iface wlan0 inet static



              address 10.1.1.2



              netmask 255.0.0.0



              broadcast 10.255.255.255



              gateway 10.1.1.1



              wpa-ssid network-name



              wpa-psk pre-shared-key



              Change parameters accordingly of course






              share|improve this answer


























                0












                0








                0







                This is the setup I use for my 16.04 wifi setup and works flawlessly.



                auto wlan0



                iface wlan0 inet static



                address 10.1.1.2



                netmask 255.0.0.0



                broadcast 10.255.255.255



                gateway 10.1.1.1



                wpa-ssid network-name



                wpa-psk pre-shared-key



                Change parameters accordingly of course






                share|improve this answer













                This is the setup I use for my 16.04 wifi setup and works flawlessly.



                auto wlan0



                iface wlan0 inet static



                address 10.1.1.2



                netmask 255.0.0.0



                broadcast 10.255.255.255



                gateway 10.1.1.1



                wpa-ssid network-name



                wpa-psk pre-shared-key



                Change parameters accordingly of course







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Jun 9 '16 at 19:15









                ILOVEKODIILOVEKODI

                429316




                429316






























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