Am Freitag, 7. Januar 2011 schrieb Luis R. Rodriguez: > On Thu, Jan 06, 2011 at 08:31:22AM -0800, Aleksandar Milivojevic wrote: > > Playing with it a bit more this morning. Looks like the connection > > from wireless adapter to my AP drops periodically. Sometimes it > > recovers (sometimes after several attempts), sometimes it does not. > > Seems to be very random: > > > > # egrep 'authent|associat' /var/log/debug > > Jan 6 08:00:54 toporko kernel: [ 47.570810] wlan0: authenticate > > with 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:00:54 toporko kernel: [ 47.571321] wlan0: authenticated > > Jan 6 08:00:56 toporko kernel: [ 49.174175] wlan0: associate with > > 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:00:56 toporko kernel: [ 49.175536] wlan0: associated > > Jan 6 08:06:01 toporko kernel: [ 354.230874] wlan0: authenticate > > with 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:06:01 toporko kernel: [ 354.231364] wlan0: authenticated > > Jan 6 08:06:01 toporko kernel: [ 354.236066] wlan0: associate with > > 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:06:01 toporko kernel: [ 354.236865] wlan0: associated > > Jan 6 08:09:36 toporko kernel: [ 569.868923] wlan0: authenticate > > with 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:09:36 toporko kernel: [ 569.869416] wlan0: authenticated > > Jan 6 08:09:36 toporko kernel: [ 569.873736] wlan0: associate with > > 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:09:36 toporko kernel: [ 569.874507] wlan0: associated > > Jan 6 08:09:46 toporko kernel: [ 579.233563] wlan0: authenticate > > with 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:09:46 toporko kernel: [ 579.235574] wlan0: authenticated > > Jan 6 08:09:46 toporko kernel: [ 579.240737] wlan0: associate with > > 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:09:46 toporko kernel: [ 579.241518] wlan0: associated > > Jan 6 08:09:57 toporko kernel: [ 590.830933] wlan0: authenticate > > with 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:09:57 toporko kernel: [ 590.831435] wlan0: authenticated > > Jan 6 08:09:57 toporko kernel: [ 590.839102] wlan0: associate with > > 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:09:57 toporko kernel: [ 590.839881] wlan0: associated > > Jan 6 08:21:29 toporko kernel: [ 1282.823289] wlan0: authenticate > > with 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:21:29 toporko kernel: [ 1282.823783] wlan0: authenticated > > Jan 6 08:21:29 toporko kernel: [ 1282.828990] wlan0: associate with > > 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:21:29 toporko kernel: [ 1282.830132] wlan0: associated > > Jan 6 08:25:30 toporko kernel: [ 1523.433931] wlan0: authenticate > > with 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:25:30 toporko kernel: [ 1523.434930] wlan0: authenticated > > Jan 6 08:25:30 toporko kernel: [ 1523.439868] wlan0: associate with > > 00:1e:52:79:e9:ff (try 1) > > Jan 6 08:25:30 toporko kernel: [ 1523.440652] wlan0: associated > > > > So far, it managed to re-connect every time. Though, I'm rather sure > > if I leave it long enough, the last night's case of connection dropped > > completely would repeat sooner or later (even last night, there were > > some connect/disconnect events before connection was dropped > > permanently). > > > > The AP reports signal from wireless card between -70 and -75dB, noise > > at -96dB, and speed at 120mbps (with occasional drop to 45mbps). > > These numbers sound about OK for the location (on the other side of my > > apartment, few walls in between). For comparison, if I position my > > MacBook at same location (right next to my Linux box), AP reports > > signal from its AirPort card at about -60dB and speed in about 100mbps > > range and no drops. > > The Linux regulatory code only relies on the Country IE from the AP you > decide to associate to, that's it. Then, as for all the regulatory stuff > popping out once you are associated, its happening because as I see it > you are being disconnected from the AP. The Linux regulatory code will > reset the regulatory settings after you disconnect from an AP. > > The disconnect issues should not be regularory related from what I see. > Seems like a general disconnect issue with your driver. Sounds reasonable. Thanks for the update Luis. So, it's more likely a rt2x00 or mac80211 issue. Helmut -- 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
