这是我第一次在这里发帖，我想提前感谢您的时间:)。
好吧，我会试着描述我的问题……我目前在东芝笔记本电脑上运行 Kubuntu 12.04 LTS。我有一块内置 Realtek RTL8723AE 无线网卡，我为它构建并安装了内核驱动程序，到目前为止，它一直运行良好。我还有一个外置 TP-LINK TL-WN722N 无线网卡，到目前为止，系统可以自动检测到它，没有任何问题。这张卡有一个 Atheros 芯片组。
听起来可能很奇怪，我的问题是在 Windows 7 机器上使用 TP-LINK 卡后开始的。在让它在那里工作后 - 安装驱动程序等 - 我把它拔下来，然后再次在笔记本电脑上使用它。我无法解释原因，但它在那里不再工作了。系统根本无法识别它。我当然没有做任何愚蠢的事情。然后我想“这一定是比尔盖茨的某种邪恶诅咒”。我的意思是，我试着不迷信等等，但我仍然没有找到更合理的解释。
不管怎样，我开始在网上搜索，找到了一些与这张卡相关的答案。我试过其中一些，但没有用。我最后一次尝试的是这篇文章这里。完成这些操作后，我重启了笔记本电脑。当我的操作系统加载时，我在网络管理器中看不到该卡（与“比尔盖茨诅咒”之后的情况相同），但现在我的内部卡也消失了……我尝试重新安装其驱动程序，但什么也没发生……这就是我现在的处境。我真的不知道该怎么办。任何帮助都将不胜感激 :)。
（英语不是我的母语，所以如有任何错误请原谅）
这些是修复内部卡问题后 wireless_script 的结果：
########## 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 ############
我也重新安装了内核，但 TP-LINK 的问题仍然存在。
答案1
做：
sudo apt-get install --reinstall linux-headers-$(uname -r) build-essential
然后做：
cd Desktop /rtl_92ce_92se_92de_8723ae_linux_mac80211_0007.0809 .2012
sudo su
make
make install
modprobe rtl8723e
exit
每当内核有更新时您都必须执行以下操作：
cd Desktop /rtl_92ce_92se_92de_8723ae_linux_mac80211_0007.0809 .2012
sudo su
make clean
make
make install
modprobe rtl8723e
exit
可能需要重新启动。