Ok, I think I know what is happening. If there are no stations connected the AP wireless card goes in some kind of low power mode - I think low transmission power If I am trying to connect if I am close enough the client associates but the power indicator shows the signal is weak. I After a few second(5-6 seconds) I can see that the transmission power is increased and then I could go further from AP and connection stays stable, if I go away before the transmission power grows the wireless connection goes down If I am too far It seems that the windows client terminates connection before the AP raises the transmission power. Any idea - anything that could help me ? 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
