Hi Thank you for the support. I did as you told me - there are a lot of following messages: ath: ffff880001c03d70 I think the problem may be power save mode. There is something like this in the logs - it seems that the card after going into some kind of sleep (no clients active). The problem does not occur if there is a wireless client associated all the time. This is what is happening if the wireless network card tries to reconnect: Jan 16 19:53:42 tomasz-htpc kernel: [1245668.441903] ieee80211 phy0: Allocated STA 00:1e:64:7d:b3:ee Jan 16 19:53:42 tomasz-htpc kernel: [1245668.442019] ieee80211 phy0: Inserted STA 00:1e:64:7d:b3:ee Jan 16 19:54:34 tomasz-htpc kernel: [1245721.374459] wlan0: STA 00:1e:64:7d:b3:ee aid 1 enters power save mode Jan 16 19:54:35 tomasz-htpc kernel: [1245721.560981] wlan0: STA 00:1e:64:7d:b3:ee aid 1 exits power save mode Jan 16 19:54:35 tomasz-htpc kernel: [1245721.561000] wlan0: STA 00:1e:64:7d:b3:ee aid 1 sending 1 filtered/0 PS frames since STA not sleeping anymore Jan 16 19:54:35 tomasz-htpc kernel: [1245722.012452] wlan0: STA 00:1e:64:7d:b3:ee aid 1 enters power save mode Jan 16 19:54:35 tomasz-htpc kernel: [1245722.045244] wlan0: STA 00:1e:64:7d:b3:ee aid 1 exits power save mode Jan 16 19:54:35 tomasz-htpc kernel: [1245722.045263] wlan0: STA 00:1e:64:7d:b3:ee aid 1 sending 0 filtered/0 PS frames since STA not sleeping anymore Jan 16 19:54:36 tomasz-htpc kernel: [1245723.070050] ieee80211 phy0: Removed STA 00:1e:64:7d:b3:ee Jan 16 19:54:36 tomasz-htpc kernel: [1245723.070139] ieee80211 phy0: Destroyed STA 00:1e:64:7d:b3:ee Jan 16 19:54:37 tomasz-htpc kernel: [1245723.660913] wlan0: dropped frame to 00:1e:64:7d:b3:ee (unauthorized port) Jan 16 19:54:38 tomasz-htpc kernel: [1245724.797561] wlan0: dropped frame to 00:1e:64:7d:b3:ee (unauthorized port) Jan 16 19:54:38 tomasz-htpc kernel: [1245724.801741] wlan0: dropped frame to 00:1e:64:7d:b3:ee (unauthorized port) Jan 16 19:54:38 tomasz-htpc kernel: [1245725.208031] wlan0: dropped frame to 00:1e:64:7d:b3:ee (unauthorized port) Jan 16 19:54:38 tomasz-htpc kernel: [1245725.209209] wlan0: dropped frame to 00:1e:64:7d:b3:ee (unauthorized port) Jan 16 19:54:39 tomasz-htpc kernel: [1245725.808240] wlan0: dropped frame to 00:1e:64:7d:b3:ee (unauthorized port) Jan 16 19:54:39 tomasz-htpc kernel: [1245726.007755] wlan0: dropped frame to 00:1e:64:7d:b3:ee (unauthorized port) Jan 16 19:54:39 tomasz-htpc kernel: [1245726.007799] wlan0: dropped frame to 00:1e:64:7d:b3:ee (unauthorized port) Jan 16 19:54:39 tomasz-htpc kernel: [1245726.028789] wlan0: dropped frame to 00:1e:64:7d:b3:ee (unauthorized port) Jan 16 19:54:39 tomasz-htpc kernel: [1245726.208536] wlan0: dropped frame to 00:1e:64:7d:b3:ee (unauthorized port) Jan 16 19:54:44 tomasz-htpc kernel: [1245730.601089] __ratelimit: 10 callbacks suppressed And again and again - but if I go closer to AP it works, even if I walk away. Regards Tomasz 2011/1/14 Rajkumar Manoharan <rmanoharan@xxxxxxxxxxx> > > On Fri, Jan 14, 2011 at 04:16:37AM +0530, Tomasz wrote: > > Hi All > > I've spend a lot of time on this issue and I cannot fix it, thus I am asking for > > help > > It looks like that: > > > > I am running wireless access point based on: > > Ubuntu 10.04 Âvmlinuz-2.6.32-27-generic > > compat-wireless-2010-12-26 > > hostapd 0.7.3 (wpa/wpa2) > > Dnsmasq version 2.52 > > Zotac Ion board > > Minipcie card: ieee80211 phy0: Atheros AR9285 Rev:2 > > ath9k driver > > Single antenna (but the behaviour with two antenna is similar) > > > > Everything works perfectly fine when I am within the few meters from the antenna. > > So the clients are connecting and I get 25 mbps data rates. > > But if more then 10 meters from the antenna strange things are happening. > > - If I am connected to the network and will walk away everything works perfect. > > - But if i disconnect (disassociate) when I am away I cannot connect back. - > > this also means I cannot connect when turning the notebook on :) > > - if I go closer to antenna I am able to connect and while walking away the > > connection seems perfectly stable ... > Hi Tomasz, > > Do you have any interference with the oper channel? Please enable debug option > CONFIG_ATH_DEBUG=y in config.mk and modprobe ath9k debug=0x701 and > post dmesg/kern.log > > -- > Rajkumar -- 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
