Jtdcftul

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 ############

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