Whenever I connect to my girlfriend's wireless network, gnome shell will "pause" randomly. Gnome shell quits updating or drawing. The clock is set to use seconds, and will pause for anywhere from 1 to 15 seconds (no render updates, then suddenly jumps). X seems to still be running- when these pauses happen, any text I type will appear when gnome is unpaused and the mouse cursor is very responsive. During these pauses, I can also switch to a different terminal (Ctrl+Alt+F2) and work normally. This does not happen on any other wireless networks. I have not tested connecting to the AP over ethernet. Any ideas on what could be causing this?
AP is a Verizon licensed Actiontec MI424-WR Rev.D
[~]$ lspci | grep -i net 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) [~]$ lspci -vv -s 03:00.0 03:00.0 Network controller: Intel Corporation Centrino Ultimate-N 6300 (rev 35) Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN 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 52 Region 0: Memory at ded00000 (64-bit, non-prefetchable) [size=8K] Capabilities: <access denied> Kernel driver in use: iwlwifi Kernel modules: iwlwifi [~]$ modinfo iwlwifi (http://pastie.org/3455752)
--- 192.168.1.1 ping statistics --- 109 packets transmitted, 107 received, 1% packet loss, time 108140ms rtt min/avg/max/mdev = 0.817/5.932/96.705/14.555 ms
No noticeable changes in ping times during a "pause" event.
Nothing in dmesg or /var/log/messages
[Edit 3, answers for Kaptk2]
WEP encryption, AP does DHCP, I am assuming Wireless N because the AP and card are both modern, but cannot confirm that.
PS How do I confirm that?
iw dev wlan0 station dump does not have the needed info.
[Edit 4, more on the AP]
[~]$ iw wifi0 scan ssid VL440 BSS 00:1f:90:e2:73:17 (on wlan0) -- associated TSF: 198981120700 usec (2d, 07:16:21) freq: 2462 beacon interval: 100 capability: ESS Privacy ShortPreamble SpectrumMgmt ShortSlotTime (0x0531) signal: -41.00 dBm last seen: 99 ms ago Information elements from Probe Response frame: SSID: VL440 Supported rates: 1.0* 2.0* 5.5* 6.0 9.0 11.0* 12.0 18.0 DS Parameter set: channel 11 Country: US Environment: Indoor/Outdoor Channels [1 - 11] @ 27 dBm Power constraint: 0 dB ERP: <no flags> Extended supported rates: 24.0 36.0 48.0 54.0 WMM: * Parameter version 1 * u-APSD * BE: CW 15-1023, AIFSN 3 * BK: CW 15-1023, AIFSN 7 * VI: CW 7-15, AIFSN 2, TXOP 3008 usec * VO: CW 3-7, AIFSN 2, TXOP 1504 usec