有关该主题的先前问题并没有真正的帮助，因此提出一个新的问题。
问题
每次我尝试连接 wifi 时，都会自动“取消身份验证”（原因：2）
网络上的理论
- 使用了多个驱动程序。但我看不出它适用于我。
- 它与“CRDA”有关
我的系统+背景
预装 12.02 的 Dell XPS 13。两天前我的系统崩溃了（还有 wifi 问题，根本检测不到 wifi），因为我无法修复它，所以我以为我只需要使用 Dell 恢复模式。不，我可以看到 wifi，但我被踢出了 :(
我尝试过
我把这个“crda”（之前是空的）改成了“DE”，因为这是我的所在地。我的操作系统安装在“EN”中。-> 没有改善
我尝试检查是否使用了 2x 驱动程序，但如果是的话，我甚至不知道去哪里查找 :(
系统输出
命令dmesg
[ 4205.984379] wlan0: authenticate with f0:7d:68:85:60:ba
[ 4205.985366] wlan0: send auth to f0:7d:68:85:60:ba (try 1/3)
[ 4205.987192] wlan0: authenticated
[ 4205.988751] wlan0: associate with f0:7d:68:85:60:ba (try 1/3)
[ 4205.991531] wlan0: RX AssocResp from f0:7d:68:85:60:ba (capab=0xc31 status=0 aid=1)
[ 4205.993986] wlan0: associated
[ 4205.994624] cfg80211: Calling CRDA for country: GB
[ 4205.997616] cfg80211: Regulatory domain changed to country: GB
[ 4205.997618] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 4205.997620] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 4205.997622] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 4205.997623] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 4205.997624] cfg80211: (5490000 KHz - 5710000 KHz @ 40000 KHz), (N/A, 2700 mBm)
[ 4209.008415] wlan0: deauthenticated from f0:7d:68:85:60:ba (Reason: 2)
[ 4209.010142] cfg80211: Calling CRDA to update world regulatory domain
[ 4209.015212] cfg80211: World regulatory domain updated:
[ 4209.015219] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 4209.015224] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 4209.015228] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 4209.015232] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[ 4209.015235] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 4209.015238] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[ 4209.015258] cfg80211: Calling CRDA for country: DE
[ 4209.021947] cfg80211: Regulatory domain changed to country: DE
[ 4209.021950] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[ 4209.021952] cfg80211: (2400000 KHz - 2483500 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 4209.021954] cfg80211: (5150000 KHz - 5250000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 4209.021955] cfg80211: (5250000 KHz - 5350000 KHz @ 40000 KHz), (N/A, 2000 mBm)
[ 4209.021957] cfg80211: (5470000 KHz - 5725000 KHz @ 40000 KHz), (N/A, 2698 mBm)
lspci -nnk | grep -i net -A2
02:00.0 Network controller [0280]: Intel Corporation Device [8086:08b1] (rev 6b)
Subsystem: Intel Corporation Device [8086:c470]
Kernel driver in use: iwlwifi
uname -a
Linux luken 3.5.0-41-generic #64somerville8-Ubuntu SMP Wed Oct 2 09:57:33 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
减少 /etc/network/interfaces
auto lo
iface lo inet loopback
是否配置
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:3752 errors:0 dropped:0 overruns:0 frame:0
TX packets:3752 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:304256 (304.2 KB) TX bytes:304256 (304.2 KB)
lxcbr0 Link encap:Ethernet HWaddr a6:0f:13:82:6a:60
inet addr:10.0.3.1 Bcast:10.0.3.255 Mask:255.255.255.0
inet6 addr: fe80::a40f:13ff:fe82:6a60/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:70 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:11439 (11.4 KB)
virbr0 Link encap:Ethernet HWaddr 2a:ce:cc:31:31:19
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
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:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet HWaddr e8:b1:fc:2a:4b:a8
inet6 addr: fe80::eab1:fcff:fe2a:4ba8/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:197 errors:0 dropped:0 overruns:0 frame:0
TX packets:195 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:22261 (22.2 KB) TX bytes:30225 (30.2 KB)
系统配置
lo no wireless extensions.
virbr0 no wireless extensions.
lxcbr0 no wireless extensions.
wlan0 no wireless extensions.
rfkill 列表
1: phy1: Wireless LAN
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no