It is my first time posting here and I want to thank you in advance for your time :).
Well, so I will try to describe my problem... I am currently running Kubuntu 12.04 LTS on a Toshiba laptop. I have an internal Realtek RTL8723AE wireless card for which I have built and installed the drivers for my kernel and which used to work fine until now. I also have an external TP-LINK TL-WN722N wireless card which used to be autodetected by the system up to now and there was no problem whatsoever. This card has an Atheros chipset.
Strange as it may sound, my problems began after using the TP-LINK card on a Windows 7 machine. After making it work there - installing the drivers and so on - I pulled it and went to use it on my laptop again. I can't explain why, but it didn't work there anymore. It is not recognized by the system at all. I certainly did not do anything stupid in the meantime. I then thought "this must be some evil Bill Gates curse". I mean, I tried not to be supersitious etc, but I still haven't found a more reasonable explanation.
Anyway, I started to search the internet and I found some answers related to this card. I tried some of them, but they didn't work. The last try I gave was this post here. After doing that, I rebooted the laptop. When my OS loaded I could not see the card in my network manager (same as after the "Bill Gates curse"), but now my internal card had disappeared as well... I tried to reinstall its drivers but nothing happened... This is the point where I am at now. I don' t really know what to do. Any help will be greately appreciated :).
(English is not my native language, so please excuse any mistakes)
These are the results from the wireless_script after fixing the issue with the internal card:
########## wireless info START ##########
##### release #####
Distributor ID: Ubuntu
Description: Ubuntu 12.04.4 LTS
Release: 12.04
Codename: precise
##### kernel #####
Linux matrix 3.2.0-58-generic #88-Ubuntu SMP Tue Dec 3 17:37:58 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
##### lspci #####
08:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723AE PCIe Wireless Network Adapter [10ec:8723]
Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:0723]
Kernel driver in use: rtl8723e
09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller [10ec:8136] (rev 05)
Subsystem: Toshiba America Info Systems Device [1179:fb37]
Kernel driver in use: r8169
##### lsusb #####
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 003 Device 002: ID 046d:c05f Logitech, Inc.
Bus 003 Device 003: ID 0930:021d Toshiba Corp.
Bus 001 Device 003: ID 04f2:b307 Chicony Electronics Co., Ltd
Bus 003 Device 004: ID 0cf3:9271 Atheros Communications, Inc. AR9271 802.11n
##### PCMCIA Card Info #####
##### rfkill #####
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #####
ath9k_htc 92738 0
ath9k_common 14053 1 ath9k_htc
ath9k_hw 411239 2 ath9k_htc,ath9k_common
ath 24067 3 ath9k_htc,ath9k_common,ath9k_hw
rtl8723e 175439 0
rtlwifi 118798 1 rtl8723e
mac80211 506862 3 ath9k_htc,rtl8723e,rtlwifi
cfg80211 205774 4 ath9k_htc,ath,rtlwifi,mac80211
##### iw reg get #####
country 00:
(2402 - 2472 @ 40), (3, 20)
(2457 - 2482 @ 20), (3, 20), PASSIVE-SCAN, NO-IBSS
(2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
(5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
##### interfaces #####
auto lo
iface lo inet loopback
##### iwconfig #####
wlan0 IEEE 802.11bgn ESSID:"AP_AMYNTAIO_U8"
Mode:Managed Frequency:2.427 GHz Access Point: <MAC address removed>
Bit Rate=11 Mb/s Tx-Power=20 dBm
Retry long limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=16/70 Signal level=-94 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:696 Missed beacon:0
##### route #####
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.150.1 0.0.0.0 UG 0 0 0 wlan0
169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 wlan0
192.168.122.0 0.0.0.0 255.255.255.0 U 0 0 0 virbr0
192.168.150.0 0.0.0.0 255.255.255.0 U 2 0 0 wlan0
##### resolv.conf #####
nameserver 127.0.0.1
##### nm-tool #####
NetworkManager Tool
State: connected (global)
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
HW Address: <MAC address removed>
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
- Device: wlan0 [AP_AMYNTAIO_U8] ----------------------------------------------
Type: 802.11 WiFi
Driver: rtl8723e
State: connected
Default: yes
HW Address: <MAC address removed>
Capabilities:
Speed: 11 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
CYTA717589: Infra, <MAC address removed>, Freq 2437 MHz, Rate 54 Mb/s, Strength 26 WPA2
*AP_AMYNTAIO_U8: Infra, <MAC address removed>, Freq 2427 MHz, Rate 11 Mb/s, Strength 32
IPv4 Settings:
Address: 192.168.150.44
Prefix: 24 (255.255.255.0)
Gateway: 192.168.150.1
DNS: 195.170.0.1
DNS: 195.170.2.2
##### NetworkManager.state #####
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf #####
[main]
plugins=ifupdown,keyfile
dns=dnsmasq
[ifupdown]
managed=false
##### iwlist #####
wlan0 Scan completed :
Cell 01 - Address: <MAC address removed>
Channel:4
Frequency:2.427 GHz (Channel 4)
Quality=16/70 Signal level=-94 dBm
Encryption key:off
ESSID:"AP_AMYNTAIO_U8"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Mode:Master
Extra:tsf=000000000f456648
Extra: Last beacon: 532ms ago
IE: Unknown: 000E41505F414D594E5441494F5F5538
IE: Unknown: 010482040B16
IE: Unknown: 030104
IE: Unknown: DD2A000C42000000011E000000002E660902FF0F776C616E5F4F4D4E49000000000000000000000005027B09
Cell 02 - Address: <MAC address removed>
Channel:4
Frequency:2.427 GHz (Channel 4)
Quality=18/70 Signal level=-92 dBm
Encryption key:on
ESSID:""
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Mode:Master
Extra:tsf=000000000f456186
Extra: Last beacon: 532ms ago
IE: Unknown: 0000
IE: Unknown: 010482040B16
IE: Unknown: 030104
IE: Unknown: 050400010000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD2A000C42000000011E000000002E660902FF0F776C616E5F4F4D4E49000000000000000000000005027B09
Cell 03 - Address: <MAC address removed>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=14/70 Signal level=-96 dBm
Encryption key:on
ESSID:"CYTA717589"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000000e7338193
Extra: Last beacon: 848ms ago
IE: Unknown: 000A43595441373137353839
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 0706475220010D14
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1A7C181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606080000000000000000000000000000000000000000
IE: Unknown: DD090010180200F02C0000
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
##### iwlist channel #####
wlan0 13 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
Current Frequency:2.427 GHz (Channel 4)
##### modinfo #####
filename: /lib/modules/3.2.0-58-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_htc.ko
firmware: htc_9271.fw
firmware: htc_7010.fw
description: Atheros driver 802.11n HTC based wireless devices
license: Dual BSD/GPL
author: Atheros Communications
srcversion: C7C7DD7D23ED5C73A328E72
alias: usb:v0CF3p20FFd*dc*dsc*dp*ic*isc*ip*
alias: usb:v0411p017Fd*dc*dsc*dp*ic*isc*ip*
alias: usb:v083ApA704d*dc*dsc*dp*ic*isc*ip*
alias: usb:v0846p9018d*dc*dsc*dp*ic*isc*ip*
alias: usb:v0CF3p7010d*dc*dsc*dp*ic*isc*ip*
alias: usb:v1668p1200d*dc*dsc*dp*ic*isc*ip*
alias: usb:v0CF3p7015d*dc*dsc*dp*ic*isc*ip*
alias: usb:v057Cp8403d*dc*dsc*dp*ic*isc*ip*
alias: usb:v0CF3pB003d*dc*dsc*dp*ic*isc*ip*
alias: usb:v040Dp3801d*dc*dsc*dp*ic*isc*ip*
alias: usb:v04CAp4605d*dc*dsc*dp*ic*isc*ip*
alias: usb:v13D3p3350d*dc*dsc*dp*ic*isc*ip*
alias: usb:v13D3p3349d*dc*dsc*dp*ic*isc*ip*
alias: usb:v13D3p3348d*dc*dsc*dp*ic*isc*ip*
alias: usb:v13D3p3346d*dc*dsc*dp*ic*isc*ip*
alias: usb:v13D3p3328d*dc*dsc*dp*ic*isc*ip*
alias: usb:v13D3p3327d*dc*dsc*dp*ic*isc*ip*
alias: usb:v07D1p3A10d*dc*dsc*dp*ic*isc*ip*
alias: usb:v0846p9030d*dc*dsc*dp*ic*isc*ip*
alias: usb:v0CF3p1006d*dc*dsc*dp*ic*isc*ip*
alias: usb:v0CF3p9271d*dc*dsc*dp*ic*isc*ip*
depends: ath9k_hw,ath9k_common,mac80211,ath,cfg80211
intree: Y
vermagic: 3.2.0-58-generic SMP mod_unload modversions
parm: debug:Debugging mask (uint)
parm: nohwcrypt:Disable hardware encryption (int)
filename: /lib/modules/3.2.0-58-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_common.ko
license: Dual BSD/GPL
description: Shared library for Atheros wireless 802.11n LAN cards.
author: Atheros Communications
srcversion: 87C8338518A200F45D72110
depends: ath,ath9k_hw
intree: Y
vermagic: 3.2.0-58-generic SMP mod_unload modversions
filename: /lib/modules/3.2.0-58-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k_hw.ko
license: Dual BSD/GPL
description: Support for Atheros 802.11n wireless LAN cards.
author: Atheros Communications
srcversion: 5A4F26731216C44D9DA1D5C
depends: ath
intree: Y
vermagic: 3.2.0-58-generic SMP mod_unload modversions
parm: force_new_ani:Force new ANI for AR5008, AR9001, AR9002 (int)
filename: /lib/modules/3.2.0-58-generic/kernel/drivers/net/wireless/ath/ath.ko
license: Dual BSD/GPL
description: Shared library for Atheros wireless LAN cards.
author: Atheros Communications
srcversion: 8B429DBE4586F4065E2EA2E
depends: cfg80211
intree: Y
vermagic: 3.2.0-58-generic SMP mod_unload modversions
filename: /lib/modules/3.2.0-58-generic/kernel/drivers/net/wireless/rtlwifi/rtl8723e/rtl8723e.ko
firmware: rtlwifi/rtl8723efw.bin
description: Realtek 8723E 802.11n PCI wireless
license: GPL
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: 161CC0CE5CE8DD8F90D732E
alias: pci:v000010ECd00008723sv*sd*bc*sc*i*
depends: mac80211,rtlwifi
vermagic: 3.2.0-58-generic SMP mod_unload modversions
parm: swlps:bool
parm: swenc:using hardware crypto (default 0 [hardware])
(bool)
parm: ips:using no link power save (default 1 is open)
(bool)
parm: fwlps:using linked fw control power save (default 1 is open)
(bool)
filename: /lib/modules/3.2.0-58-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
description: Realtek 802.11n PCI wireless core
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: 5EE6168D1B4BBA473F6CCD0
depends: cfg80211,mac80211
vermagic: 3.2.0-58-generic SMP mod_unload modversions
##### modules #####
lp
rtc
fuse
##### blacklist #####
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/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 bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
[/etc/modprobe.d/blacklist-fglrx.conf]
blacklist radeon
##### udev rules #####
# PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:1c.2/0000:09:00.0 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0 (rtl8723e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
# PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0 (rtl8723e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan1"
# PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0 (rtl8723e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan2"
# PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:1c.1/0000:08:00.0 (rtl8723e)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan3"
# USB device 0x0cf3:0x9271 (usb)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan4"
##### dmesg #####
[ 14.655533] rtl8723e 0000:08:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17
[ 14.655546] rtl8723e 0000:08:00.0: setting latency timer to 64
[ 14.672901] firemare: rtl8723fw_B.bin
[ 14.891443] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 14.891781] rtlwifi: wireless switch is on
[ 17.341662] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 17.341975] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 22.463671] wlan0: authenticate with <MAC address removed> (try 1)
[ 22.465525] wlan0: authenticated
[ 22.498231] wlan0: associate with <MAC address removed> (try 1)
[ 22.501926] wlan0: RX AssocResp from <MAC address removed> (capab=0x421 status=0 aid=2)
[ 22.501932] wlan0: associated
[ 22.502823] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 29.489752] rtlwifi-0:rtl_watchdog_wq_callback():<0-0> AP off, try to reconnect now
[ 29.489803] wlan0: Connection to AP <MAC address removed> lost.
[ 30.931440] wlan0: authenticate with <MAC address removed> (try 1)
[ 30.933533] wlan0: authenticated
[ 30.933740] wlan0: associate with <MAC address removed> (try 1)
[ 30.939057] wlan0: RX ReassocResp from <MAC address removed> (capab=0x421 status=0 aid=2)
[ 30.939060] wlan0: associated
[ 33.474061] wlan0: no IPv6 routers present
[ 53.562982] usb 3-2: ath9k_htc: Transferred FW: htc_9271.fw, size: 51272
[ 53.565886] usb 3-2: ath9k_htc: Unable to allocate URBs
[ 53.565908] ath9k_htc: probe of 3-2:1.0 failed with error -22
[ 53.565935] usbcore: registered new interface driver ath9k_htc
########## wireless info END ############
I also reinstalled the kernel but the issue with TP-LINK remained.
sudo modprobe -v rtl8723e
post any errors.