我刚买了一台配备英特尔 wifi 的戴尔 DEv 版 precision 笔记本电脑。它可以连接到一些 wpa2 个人网络，但无法连接到我的工作 wifi。我有 14.04 版，我更新了所有软件 - 从日志中可以看到，系统进行了身份验证并成功了，但随后出现了一些 gtk 警告，它以“无缘无故”的方式取消了身份验证
Mar 30 12:59:47 Dovakim NetworkManager[848]: <info> (wlan0): supplicant interface state: disconnected -> scanning
Mar 30 12:59:47 Dovakim wpa_supplicant[14896]: wlan0: SME: Trying to authenticate with 04:da:d2:a6:ab:05 (SSID='FEVMA' freq=2412 MHz)
Mar 30 12:59:47 Dovakim kernel: [10229.115142] wlan0: authenticate with 04:da:d2:a6:ab:05
Mar 30 12:59:47 Dovakim NetworkManager[848]: <info> (wlan0): supplicant interface state: scanning -> authenticating
Mar 30 12:59:47 Dovakim kernel: [10229.127720] wlan0: send auth to 04:da:d2:a6:ab:05 (try 1/3)
Mar 30 12:59:47 Dovakim wpa_supplicant[14896]: wlan0: Trying to associate with 04:da:d2:a6:ab:05 (SSID='FEVMA' freq=2412 MHz)
Mar 30 12:59:47 Dovakim kernel: [10229.242361] wlan0: send auth to 04:da:d2:a6:ab:05 (try 2/3)
Mar 30 12:59:47 Dovakim kernel: [10229.243486] wlan0: authenticated
Mar 30 12:59:47 Dovakim kernel: [10229.243869] wlan0: associate with 04:da:d2:a6:ab:05 (try 1/3)
Mar 30 12:59:47 Dovakim kernel: [10229.246799] wlan0: RX AssocResp from 04:da:d2:a6:ab:05 (capab=0x431 status=0 aid=120)
Mar 30 12:59:47 Dovakim wpa_supplicant[14896]: wlan0: Associated with 04:da:d2:a6:ab:05
Mar 30 12:59:47 Dovakim NetworkManager[848]: <info> (wlan0): supplicant interface state: authenticating -> associated
Mar 30 12:59:47 Dovakim kernel: [10229.248127] wlan0: associated
Mar 30 12:59:47 Dovakim wpa_supplicant[14896]: wlan0: CTRL-EVENT-EAP-STARTED EAP authentication started
Mar 30 12:59:47 Dovakim wpa_supplicant[14896]: wlan0: CTRL-EVENT-EAP-PROPOSED-METHOD vendor=0 method=25
Mar 30 12:59:47 Dovakim wpa_supplicant[14896]: wlan0: CTRL-EVENT-EAP-METHOD EAP vendor 0 method 25 (PEAP) selected
Mar 30 12:59:47 Dovakim wpa_supplicant[14896]: EAP-TLV: TLV Result - Success - EAP-TLV/Phase2 Completed
Mar 30 12:59:47 Dovakim wpa_supplicant[14896]: wlan0: CTRL-EVENT-EAP-SUCCESS EAP authentication completed successfully
Mar 30 12:59:47 Dovakim wpa_supplicant[14896]: wlan0: WPA: Failed to set GTK to the driver (alg=2 keylen=32 keyidx=1)
Mar 30 12:59:47 Dovakim wpa_supplicant[14896]: wlan0: RSN: Failed to configure GTK
Mar 30 12:59:47 Dovakim kernel: [10229.274353] wlan0: deauthenticating from 04:da:d2:a6:ab:05 by local choice (Reason: 1=UNSPECIFIED)
答案1
对于遇到此问题的任何人来说，看起来戴尔正在努力解决它（驱动程序问题）。
这是临时解决方法
http://en.community.dell.com/techcenter/os-applications/f/4613/t/19678137?pi22229=1