Re: [mac80211] connection drop up to 20x/hour at office

[Oleksij Rempel <linux@rempel-privat.de>]

Am 09.10.2013 06:29, schrieb ASIC Felix:
> I get this connection drop several times an hour, at office up to
> 20x/hour, with current Ubuntu Kernel + Backports wifi even at home,
> before only at the office. Wifi connection recovers eventually, but
> breaks VM and often even VPN connections.

20x per hour? it mean each 3 mints. Hmm... looks like scan interval of
wpa_supplicant.
Is it possible to change time to live setting of access point?

> Does anyone else see this? Further info needed?
> 
> Ubuntu:                  12-04 LTS
> Kernel:                   3.2.0-54-generic #82-Ubuntu SMP x86_64
> Backports:              v3.11-rc3-1-0-g4e81a94
> make menuconfig:   [ ]   enable powersave by default
> 
> [ 1955.984833] wlan0: Aggregation is on for 00:24:01:45:51:41 tid 0
> [ 1961.168180] wlan0: tx session timer expired on 00:24:01:45:51:41 tid 0
> [ 1961.168259] wlan0: Tx BA session stop requested for 00:24:01:45:51:41 tid 0
> [ 1968.356133] wlan0: Stopping Tx BA session for 00:24:01:45:51:41 tid 0
> [ 1969.919269] wlan0: Rx BA session stop requested for
> 00:24:01:45:51:41 tid 1 recipient reason: 36
> [ 1969.921269] wlan0: moving STA 00:24:01:45:51:41 to state 3
> [ 1969.921280] wlan0: moving STA 00:24:01:45:51:41 to state 2
> [ 1969.921289] wlan0: moving STA 00:24:01:45:51:41 to state 1
> [ 1969.921294] wlan0: Removed STA 00:24:01:45:51:41
> [ 1969.994841] wlan0: Destroyed STA 00:24:01:45:51:41
> [ 1969.994901] cfg80211: Calling CRDA to update world regulatory domain
> [ 1970.007475] cfg80211: World regulatory domain updated:
> [ 1970.007483] cfg80211:   (start_freq - end_freq @ bandwidth),
> (max_antenna_gain, max_eirp)
> [ 1970.007491] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz),
> (300 mBi, 2000 mBm)
> [ 1970.007497] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz),
> (300 mBi, 2000 mBm)
> [ 1970.007503] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz),
> (300 mBi, 2000 mBm)
> [ 1970.007509] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz),
> (300 mBi, 2000 mBm)
> [ 1970.007515] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz),
> (300 mBi, 2000 mBm)
> [ 1973.450965] wlan0: authenticate with 00:24:01:45:51:41
> [ 1973.450986] wlan0: Allocated STA 00:24:01:45:51:41
> [ 1973.463343] wlan0: Inserted STA 00:24:01:45:51:41
> [ 1973.463352] wlan0: send auth to 00:24:01:45:51:41 (try 1/3)
> [ 1973.573146] wlan0: send auth to 00:24:01:45:51:41 (try 2/3)
> [ 1973.753188] wlan0: authentication with 00:24:01:45:51:41 timed out
> [ 1973.757595] wlan0: Removed STA 00:24:01:45:51:41
> 
> Driver / Wifi module etc:
> 
>  Loading modules backported from Linux version v3.11-rc3-0-g5ae90d8
>  Backport generated by backports.git v3.11-rc3-1-0-g4e81a94
>  cfg80211: Calling CRDA to update world regulatory domain
>  cfg80211: World regulatory domain updated:
>  cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
>  cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
>  cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
>  cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
>  cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
>  cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
>  ath9k 0000:0d:00.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18
>  ath9k 0000:0d:00.0: setting latency timer to 64
>  ath: phy0: ASPM enabled: 0x42
>  ath: EEPROM regdomain: 0x6a
>  ath: EEPROM indicates we should expect a direct regpair map
>  ath: Country alpha2 being used: 00
>  ath: Regpair used: 0x6a
>  ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
>  Registered led device: ath9k-phy0
>  ieee80211 phy0: Atheros AR9300 Rev:3 mem=0xffffc900118c0000, irq=18
> 
> 
> Felix
> --
> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 


-- 
Regards,
Oleksij