在带有此wifi卡的ThinkPad X230上:
03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device 8195
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 17
Region 0: I/O ports at 4000 [size=256]
Region 2: Memory at f1c00000 (64-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: rtl8192ce
在运行Ubuntu 14.04时,网络访问经常被中断,有时在系统重启之前显然会丢失。在中断时,它出现在系统日志中:
[458.384] cfg80211: Calling CRDA to update world regulatory domain
[458.384] wlan0: authenticate with 00:13:10:ee:af:97
[458.385] wlan0: send auth to 00:13:10:ee:af:97 (try 1/3)
[458.389] cfg80211: World regulatory domain updated:
[458.389] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
[458.389] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[458.389] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[458.389] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
[458.389] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[458.389] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
[458.390] wlan0: authenticated
[458.390] rtl8192ce 0000:03:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[458.390] rtl8192ce 0000:03:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[458.391] wlan0: associate with 00:13:10:ee:af:97 (try 1/3)
[458.393] wlan0: RX AssocResp from 00:13:10:ee:af:97 (capab=0x401 status=0 aid=3)
[458.394] wlan0: associated
[984.594] wlan0: deauthenticated from 00:13:10:ee:af:97 (Reason: 7)
接入点是运行Tomato 1.19的WRT54GS。我还有其他几种无线设备 - 另一台笔记本电脑,一台iPad,一部Android手机。范围内没有其他无线设备(没有邻居,没有其他接入点等)。
笔记本电脑是新的(对我来说),从我第一次打开盖子这是行为(嘿它没有开始正常工作,然后被系统更新或其他东西打破)。
我读过“Reason:7”是“从非关联STA收到的3类帧”。我猜“STA”是“站”的缩写,它可能与接入点相同。似乎不会发生这种情况,因为范围内没有其他接入点(字面意思(字面意义上的“字面意义上的”)到下一个接入点的里程数)。
这是怎么回事?我可以以某种方式解决这个问题,或者这个硬件在Ubuntu 14.04上得不到很好的支持?