我已经这样做了 2 周，但一直没有成功。上述 NIC 可以在大多数发行版的全新安装上运行，但重新启动一两次后将无法连接。WICD 给出密码错误，ndiswrapper 不起作用，并且通过 wpa_gui 手动管理 wpa_supplicant 也无法连接。网络始终可见，只是无法连接。路由器设置为 AES 或 TKIP。同一台计算机/NIC 将在 Windows 下连接。所有其他设备均可连接。其他计算机上的其他发行版均可连接。信息如下：
########## wireless info START ##########
##### release #####
Distributor ID: Ubuntu
Description: Ubuntu 14.04 LTS
Release: 14.04
Codename: trusty
##### kernel #####
Linux DellDE051 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:31:42 UTC 2014 i686 i686 i686 GNU/Linux
##### lspci #####
01:02.0 Network controller [0280]: Qualcomm Atheros AR5416 Wireless Network Adapter [AR5008 802.11(a)bgn] [168c:0023] (rev 01)
Subsystem: Linksys WMP110 v1 802.11n RangePlus Wireless PCI Adapter [1737:0072]
Kernel driver in use: ath9k
01:08.0 Ethernet controller [0200]: Intel Corporation 82562EZ 10/100 Ethernet Controller [8086:1050] (rev 02)
Subsystem: Dell Device [1028:01d5]
Kernel driver in use: e100
##### lsusb #####
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 002: ID 413c:3200 Dell Computer Corp. Mouse
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
##### PCMCIA Card Info #####
##### rfkill #####
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### iw reg get #####
##### interfaces #####
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
##### iwconfig #####
wlan0 IEEE 802.11bgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=27 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
##### route #####
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 1 0 0 eth0
##### resolv.conf #####
nameserver 127.0.1.1
##### nm-tool #####
NetworkManager Tool
State: connected (global)
- Device: eth0 [Wired connection 1] -------------------------------------------
Type: Wired
Driver: e100
State: connected
Default: yes
HW Address: <MAC address removed>
Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s
Wired Properties
Carrier: on
IPv4 Settings:
Address: 192.168.1.102
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: 216.144.187.199
DNS: 24.229.54.212
DNS: 204.186.80.229
- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 WiFi
Driver: ath9k
State: disconnected
Default: no
HW Address: <MAC address removed>
Capabilities:
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points
No Rent No Wi-Fi:Infra, <MAC address removed>, Freq 2437 MHz, Rate 54 Mb/s, Strength 89 WPA2
WIN_be68: Infra, <MAC address removed>, Freq 2462 MHz, Rate 54 Mb/s, Strength 82 WPA2
LinksysE: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 90 WEP
cisco: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 100 WPA WPA2
WIN_c673: Infra, <MAC address removed>, Freq 2462 MHz, Rate 54 Mb/s, Strength 87 WPA WPA2
linksys: Infra, <MAC address removed>, Freq 2437 MHz, Rate 54 Mb/s, Strength 77 WPA
##### NetworkManager.state #####
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf #####
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### iwlist #####
wlan0 Scan completed :
Cell 01 - Address: <MAC address removed>
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=64/70 Signal level=-46 dBm
Encryption key:on
ESSID:"cisco"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000138034b13d
Extra: Last beacon: 60ms ago
IE: Unknown: 0005636973636F
IE: Unknown: 010882848B961224486C
IE: Unknown: 030101
IE: Unknown: 32040C183060
IE: Unknown: 0706555320010B10
IE: Unknown: 33082001020304050607
IE: Unknown: 33082105060708090A0B
IE: Unknown: DD270050F204104A0001101044000102104700102880288028801880A880002129D9A1AE103C000101
IE: Unknown: 050400010000
IE: Unknown: 2A0104
IE: Unknown: 2D1AEE1117FFFF0000010000000000000000000000000C0000000000
IE: Unknown: 3D1601050700000000000000000000000000000000000000
IE: Unknown: 7F0101
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: DD1E00904C33EE1117FFFF0000010000000000000000000000000C0000000000
IE: Unknown: DD1A00904C3401050700000000000000000000000000000000000000
IE: Unknown: DD07000C4307000000
Cell 02 - Address: <MAC address removed>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=59/70 Signal level=-51 dBm
Encryption key:on
ESSID:"No Rent No Wi-Fi"
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
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000001402deb180
Extra: Last beacon: 320ms ago
IE: Unknown: 00104E6F2052656E74204E6F2057692D4669
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 050401020000
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6F1003FFFF0000000000000000000000000000000406E6E70D00
IE: Unknown: 3D1606001500000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F0101
IE: Unknown: DD180050F2020101820003A4000027A4000042435E0062322F00
IE: Unknown: DD1E00904C336F1003FFFF0000000000000000000000000000000406E6E70D00
IE: Unknown: DD1A00904C3406001500000000000000000000000000000000000000
IE: Unknown: DD0900037F01010000FF7F
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F204104A00011010440001021049000600372A000120
##### iwlist channel #####
wlan0 11 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
##### lsmod #####
ath9k 144602 0
ath9k_common 13359 1 ath9k
ath9k_hw 438205 2 ath9k_common,ath9k
ath 23922 3 ath9k_common,ath9k,ath9k_hw
mac80211 545990 1 ath9k
cfg80211 409394 3 ath,ath9k,mac80211
##### modinfo #####
filename: /lib/modules/3.13.0-24-generic/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko
license: Dual BSD/GPL
description: Support for Atheros 802.11n wireless LAN cards.
author: Atheros Communications
srcversion: BAF225EEB618908380B28DA
alias: platform:qca955x_wmac
alias: platform:ar934x_wmac
alias: platform:ar933x_wmac
alias: platform:ath9k
alias: pci:v0000168Cd00000036sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000036sv0000185Fsd00003027bc*sc*i*
alias: pci:v0000168Cd00000036sv00001B9Asd00002810bc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Fsd00007202bc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd00002130bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000612bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000652bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000642bc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd0000302Cbc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd00003027bc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd0000411Ebc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd0000411Dbc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd0000411Cbc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd0000411Bbc*sc*i*
alias: pci:v0000168Cd00000036sv0000144Dsd0000411Abc*sc*i*
alias: pci:v0000168Cd00000036sv00001028sd0000020Ebc*sc*i*
alias: pci:v0000168Cd00000036sv0000103Csd0000217Fbc*sc*i*
alias: pci:v0000168Cd00000036sv0000103Csd000018E3bc*sc*i*
alias: pci:v0000168Cd00000036sv000017AAsd00003026bc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd0000213Abc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000662bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000672bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000622bc*sc*i*
alias: pci:v0000168Cd00000036sv0000185Fsd00003028bc*sc*i*
alias: pci:v0000168Cd00000036sv0000105Bsd0000E069bc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd0000302Bbc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd00003026bc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd00003025bc*sc*i*
alias: pci:v0000168Cd00000036sv00001B9Asd00002812bc*sc*i*
alias: pci:v0000168Cd00000036sv00001B9Asd00002811bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00006671bc*sc*i*
alias: pci:v0000168Cd00000036sv000011ADsd00000632bc*sc*i*
alias: pci:v0000168Cd00000036sv0000185Fsd0000A119bc*sc*i*
alias: pci:v0000168Cd00000036sv0000105Bsd0000E068bc*sc*i*
alias: pci:v0000168Cd00000036sv00001A3Bsd00002176bc*sc*i*
alias: pci:v0000168Cd00000036sv0000168Csd00003028bc*sc*i*
alias: pci:v0000168Cd00000037sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000034sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000034sv000010CFsd00001783bc*sc*i*
alias: pci:v0000168Cd00000034sv000014CDsd00000064bc*sc*i*
alias: pci:v0000168Cd00000034sv000014CDsd00000063bc*sc*i*
alias: pci:v0000168Cd00000034sv0000103Csd00001864bc*sc*i*
alias: pci:v0000168Cd00000034sv000011ADsd00006641bc*sc*i*
alias: pci:v0000168Cd00000034sv000011ADsd00006631bc*sc*i*
alias: pci:v0000168Cd00000034sv00001043sd0000850Ebc*sc*i*
alias: pci:v0000168Cd00000034sv00001A3Bsd00002110bc*sc*i*
alias: pci:v0000168Cd00000034sv00001969sd00000091bc*sc*i*
alias: pci:v0000168Cd00000034sv000017AAsd00003214bc*sc*i*
alias: pci:v0000168Cd00000034sv0000168Csd00003117bc*sc*i*
alias: pci:v0000168Cd00000034sv000011ADsd00006661bc*sc*i*
alias: pci:v0000168Cd00000034sv00001A3Bsd00002116bc*sc*i*
alias: pci:v0000168Cd00000033sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000032sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000032sv00001043sd0000850Dbc*sc*i*
alias: pci:v0000168Cd00000032sv00001B9Asd00001C01bc*sc*i*
alias: pci:v0000168Cd00000032sv00001B9Asd00001C00bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00001F95bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00001195bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00001F86bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00001186bc*sc*i*
alias: pci:v0000168Cd00000032sv00001B9Asd00002001bc*sc*i*
alias: pci:v0000168Cd00000032sv00001B9Asd00002000bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Fsd00007197bc*sc*i*
alias: pci:v0000168Cd00000032sv0000105Bsd0000E04Fbc*sc*i*
alias: pci:v0000168Cd00000032sv0000105Bsd0000E04Ebc*sc*i*
alias: pci:v0000168Cd00000032sv000011ADsd00006628bc*sc*i*
alias: pci:v0000168Cd00000032sv000011ADsd00006627bc*sc*i*
alias: pci:v0000168Cd00000032sv00001C56sd00004001bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00002100bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00002C97bc*sc*i*
alias: pci:v0000168Cd00000032sv000017AAsd00003219bc*sc*i*
alias: pci:v0000168Cd00000032sv000017AAsd00003218bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000C708bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000C680bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000C706bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000410Fbc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000410Ebc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd0000410Dbc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd00004106bc*sc*i*
alias: pci:v0000168Cd00000032sv0000144Dsd00004105bc*sc*i*
alias: pci:v0000168Cd00000032sv0000185Fsd00003027bc*sc*i*
alias: pci:v0000168Cd00000032sv0000185Fsd00003119bc*sc*i*
alias: pci:v0000168Cd00000032sv0000168Csd00003122bc*sc*i*
alias: pci:v0000168Cd00000032sv0000168Csd00003119bc*sc*i*
alias: pci:v0000168Cd00000032sv0000105Bsd0000E075bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00002152bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd0000126Abc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00002126bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00001237bc*sc*i*
alias: pci:v0000168Cd00000032sv00001A3Bsd00002086bc*sc*i*
alias: pci:v0000168Cd00000030sv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Esv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Dsv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Csv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Bsv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Bsv00001A3Bsd00002C37bc*sc*i*
alias: pci:v0000168Cd0000002Asv000010CFsd00001536bc*sc*i*
alias: pci:v0000168Cd0000002Asv000010CFsd0000147Dbc*sc*i*
alias: pci:v0000168Cd0000002Asv000010CFsd0000147Cbc*sc*i*
alias: pci:v0000168Cd0000002Asv0000185Fsd0000309Dbc*sc*i*
alias: pci:v0000168Cd0000002Asv00001A32sd00000306bc*sc*i*
alias: pci:v0000168Cd0000002Asv000011ADsd00006642bc*sc*i*
alias: pci:v0000168Cd0000002Asv000011ADsd00006632bc*sc*i*
alias: pci:v0000168Cd0000002Asv0000105Bsd0000E01Fbc*sc*i*
alias: pci:v0000168Cd0000002Asv00001A3Bsd00001C71bc*sc*i*
alias: pci:v0000168Cd0000002Asv*sd*bc*sc*i*
alias: pci:v0000168Cd00000029sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000027sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000024sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000023sv*sd*bc*sc*i*
depends: ath9k_hw,mac80211,ath9k_common,cfg80211,ath
intree: Y
vermagic: 3.13.0-24-generic SMP mod_unload modversions 686
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:A1:7E:EF:58:C6:AC:5E:9A:85:71:2C:92:08:DF
sig_hashalgo: sha512
parm: debug:Debugging mask (uint)
parm: nohwcrypt:Disable hardware encryption (int)
parm: blink:Enable LED blink on activity (int)
parm: btcoex_enable:Enable wifi-BT coexistence (int)
parm: bt_ant_diversity:Enable WLAN/BT RX antenna diversity (int)
parm: ps_enable:Enable WLAN PowerSave (int)
filename: /lib/modules/3.13.0-24-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: 696B00A6C59713EC0966997
depends: ath,ath9k_hw
intree: Y
vermagic: 3.13.0-24-generic SMP mod_unload modversions 686
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:A1:7E:EF:58:C6:AC:5E:9A:85:71:2C:92:08:DF
sig_hashalgo: sha512
filename: /lib/modules/3.13.0-24-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: 4809F3842A0542CD6B556D3
depends: ath
intree: Y
vermagic: 3.13.0-24-generic SMP mod_unload modversions 686
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:A1:7E:EF:58:C6:AC:5E:9A:85:71:2C:92:08:DF
sig_hashalgo: sha512
filename: /lib/modules/3.13.0-24-generic/kernel/drivers/net/wireless/ath/ath.ko
license: Dual BSD/GPL
description: Shared library for Atheros wireless LAN cards.
author: Atheros Communications
srcversion: 88A67C5359B02C5A710AFCF
depends: cfg80211
intree: Y
vermagic: 3.13.0-24-generic SMP mod_unload modversions 686
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:A1:7E:EF:58:C6:AC:5E:9A:85:71:2C:92:08:DF
sig_hashalgo: sha512
##### modules #####
lp
##### 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/fbdev-blacklist.conf]
blacklist arkfb
blacklist aty128fb
blacklist atyfb
blacklist radeonfb
blacklist cirrusfb
blacklist cyber2000fb
blacklist gx1fb
blacklist gxfb
blacklist kyrofb
blacklist matroxfb_base
blacklist mb862xxfb
blacklist neofb
blacklist nvidiafb
blacklist pm2fb
blacklist pm3fb
blacklist s3fb
blacklist savagefb
blacklist sisfb
blacklist tdfxfb
blacklist tridentfb
blacklist viafb
blacklist vt8623fb
[/etc/modprobe.d/libpisock9.conf]
blacklist visor
##### udev rules #####
# PCI device 0x8086:0x1050 (e100)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x168c:0x0023 (ath9k)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
##### dmesg #####
[ 10.844865] intel_rng: don't want to disable this in firmware setup, and if
[ 13.545939] ath: EEPROM regdomain: 0x10
[ 13.545940] ath: EEPROM indicates we should expect a direct regpair map
[ 13.545943] ath: Country alpha2 being used: CO
[ 13.545944] ath: Regpair used: 0x10
[ 18.175392] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 18.183358] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 6496.035165] wlan0: authenticate with <MAC address removed>
[ 6496.044241] wlan0: direct probe to <MAC address removed> (try 1/3)
[ 6496.248022] wlan0: direct probe to <MAC address removed> (try 2/3)
[ 6496.452023] wlan0: direct probe to <MAC address removed> (try 3/3)
[ 6496.656020] wlan0: authentication with <MAC address removed> timed out
[ 6497.380862] wlan0: authenticate with <MAC address removed>
[ 6497.397872] wlan0: direct probe to <MAC address removed> (try 1/3)
[ 6497.600021] wlan0: direct probe to <MAC address removed> (try 2/3)
[ 6497.804021] wlan0: direct probe to <MAC address removed> (try 3/3)
[ 6498.008021] wlan0: authentication with <MAC address removed> timed out
[ 6499.130876] wlan0: authenticate with <MAC address removed>
[ 6499.136436] wlan0: direct probe to <MAC address removed> (try 1/3)
[ 6499.340021] wlan0: direct probe to <MAC address removed> (try 2/3)
[ 6499.544021] wlan0: direct probe to <MAC address removed> (try 3/3)
[ 6499.748020] wlan0: authentication with <MAC address removed> timed out
[ 6501.370856] wlan0: authenticate with <MAC address removed>
[ 6501.376427] wlan0: direct probe to <MAC address removed> (try 1/3)
[ 6501.580023] wlan0: direct probe to <MAC address removed> (try 2/3)
[ 6501.784021] wlan0: direct probe to <MAC address removed> (try 3/3)
[ 6501.988022] wlan0: authentication with <MAC address removed> timed out
[ 6513.232923] wlan0: authenticate with <MAC address removed>
[ 6513.240608] wlan0: direct probe to <MAC address removed> (try 1/3)
[ 6513.444022] wlan0: direct probe to <MAC address removed> (try 2/3)
[ 6513.648023] wlan0: direct probe to <MAC address removed> (try 3/3)
[ 6513.852019] wlan0: authentication with <MAC address removed> timed out
########## wireless info END ############
答案1
我们需要为您的设备安装新的驱动程序，因为您的 dmesg 中有两条错误消息：
ath：phy0：无法停止 TX DMA，队列=0x001！
ath：正在使用的国家 alpha2：CO
到这里兼容反向移植并将最新的驱动程序下载到您的计算机，然后将文件放在您的桌面上并右键单击并在此处提取。
文件位于您的桌面后，如果您转到主页>用户名>桌面>backports-3.15-rc1-1？驱动程序>网络>无线>ath，这是在文件管理器中而不是终端中，那么您将看到与我粘贴的文件同名的文件。
http://pastebin.ubuntu.com/7486235/
http://pastebin.ubuntu.com/7486238
http://pastebin.ubuntu.com/7486250/
一次打开一个文件，删除其中的内容，然后将同名文件复制并粘贴到每个文件中，确保复制整个文件并保存每个文件。然后使用以下说明重新编译驱动程序。
每次升级内核时都必须运行这些命令。
cd ~/Desktop/backports-3.15-rc1-1
make clean
make defconfig-ath9k
make
sudo make install
sudo modprobe -rv ath9k
sudo modprobe -v ath9k
做：
sudo apt-get install wireless-crda iw
然后：
sudo sed -i "s/REGDOMAIN=/REGDOMAIN=US/" /etc/default/crda
然后检查国家代码是否改变：
iw reg get
您必须完全删除 wicd 或网络管理器，不能同时安装它们。重新启动