Here's a scan before a dropout: ------------------------------------------------------------------------------------------- sakhter@sakhter-laptop:~$ sudo iw dev wlan1 scan BSS 30:46:9a:10:49:f7 (on wlan1) -- associated TSF: 35799960635 usec (0d, 09:56:39) freq: 5220 beacon interval: 100 capability: ESS ShortSlotTime (0x0401) signal: -51.00 dBm last seen: 7988 ms ago SSID: sakhter-5g Supported rates: 6.0* 9.0 12.0* 18.0 24.0* 36.0 48.0 54.0 DS Parameter set: channel 44 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: acm CW 3-7, AIFSN 2, TXOP 1504 usec HT capabilities: Capabilities: 0x1ce HT20/HT40 SM Power Save disabled RX HT40 SGI TX STBC RX STBC 1-stream Max AMSDU length: 7935 bytes No DSSS/CCK HT40 Maximum RX AMPDU length 65535 bytes (exponent: 0x003) Minimum RX AMPDU time spacing: 1/2 usec (0x02) HT RX MCS rate indexes supported: 0-15 HT TX MCS rate indexes are undefined WPS: * Version: 1.0 * Manufacturer: Netgear, Inc. * Model: WNDR3700 * Device name: WNDR3700(Wireless AP) * Config methods: Ethernet, Label, PBC ------------------------------------------------------------------------------------------- After a dropout - TSF: 36735900731 usec (0d, 10:12:15), So I guess that's not the reason. For the QoS I'm not sure how the Video is being sent it's over samba, most likely just BE. On Sat, Oct 2, 2010 at 7:32 AM, Christian Lamparter <chunkeey@xxxxxxxxxxxxxx> wrote: > On Saturday 02 October 2010 08:18:07 Saqeb Akhter wrote: >> I guess you were right about it being unstable - almost unusable for >> video streaming. > Video streaming? Does your application use QoS AC_VI(deo) for streaming, > or just bulk data (AC_BE(st effort))? > >> sakhter@sakhter-laptop:~$ dmesg | grep Reason >> [ 1166.512087] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) >> [ 1526.059997] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) >> [ 2125.324356] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) >> [ 2845.783011] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) >> [ 3565.994832] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) >> [ 5128.903576] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) >> [ 5726.046230] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) >> [ 6326.042938] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) >> [ 6835.689445] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) >> [ 7197.337060] wlan1: deauthenticated from 30:46:9a:10:49:f7 (Reason: 7) >> >> Seems to disconnect quite frequently. Even tried uninstalling networkmanager. > Reason 7 is: [AP received a] class 3 (data) frame from non-associated STA. > This can happen when your are "actively" disassociating from the AP (unlikely), > when the AP thinks you are out-of-reach(unlikely, since your signal seems to > be strong and PSM isn't enabled by default) or when the AP crashes and resets. > > You should check your AP's TSF. (iw dev wlanX scan). > It should not go backwards. > (But if it does, then it might be because carl9170 has accidentally DoSed it?!) > > Regards, > Christian > -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
