From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cedric Sodhi Date: Sun, 29 May 2011 18:56:23 +0000 Subject: [ath9k-devel] No probe response from AP after 500ms, disconnecting. In-Reply-To: References: <20110525065853.GB10228@engine> <201105271806.21758.reavertm@gmail.com> Message-ID: <20110529185623.GA2088@engine> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org Thank you for your replies. I did not reply to this thread so far because the issue appears to have vanished. Which, by itsself, is nothing interesting as it kept emerging sporadically and I could sometimes go months without it. And since I do not recall having changed anything I assume that this is the case right here. So I'll get back to you either when it comes up again or I can concluded that it is gone for good. Thanks. On Sat, May 28, 2011 at 07:00:02PM +0530, Mohammed Shafi wrote: > On Fri, May 27, 2011 at 9:36 PM, Maciej Mrozowski wrote: > > On Wednesday 25 of May 2011 08:58:53 Cedric Sodhi wrote: > >> Dear list, > >> > >> I use a Atheros HTC USB Wireless Device TL-WN721N with 9271. This is > >> basically a very new devices which received a lot of positive reviews. > >> And linux people keep insisting that Atheros are one of the better Wifi > >> choices to make on linux. But I'm not getting anywhere this device! > > > > While it may be apples vs oranges comparison but I have identical - "No probe > > response" with my TL-WN821N V3 (AR9287+AR7010) USB device using recent > > wireless testing (at 1e4541b73b33f9918255f36a60bdeacfae4fdb9d + htc_7010.fw > > 1.3 firmware). > > > > I did try to recreate the issue but nothing helped. may be I can > increase the range or test it under more noisy environment > > > > On disconnect - no attempt to recover (my net.wlan script needs to be > > restarted manually, maybe I jsut takes some time?) : > > wlan0: detected beacon loss from AP - sending probe request > > ieee80211 phy0: wlan0: No probe response from AP 68:7f:74:77:36:bc after > > 500ms, try 1/5 > > ieee80211 phy0: wlan0: No probe response from AP 68:7f:74:77:36:bc after > > 500ms, try 2/5 > > ieee80211 phy0: wlan0: No probe response from AP 68:7f:74:77:36:bc after > > 500ms, try 3/5 > > ieee80211 phy0: wlan0: No probe response from AP 68:7f:74:77:36:bc after > > 500ms, try 4/5 > > ieee80211 phy0: wlan0: No probe response from AP 68:7f:74:77:36:bc after > > 500ms, disconnecting. > > Tx BA session stop requested for 68:7f:74:77:36:bc tid 0 > > Rx BA session stop requested for 68:7f:74:77:36:bc tid 0 > > Rx BA session stop requested for 68:7f:74:77:36:bc tid 7 > > Tx BA session stop requested for 68:7f:74:77:36:bc tid 0 > > ieee80211 phy0: Removed STA 68:7f:74:77:36:bc > > ieee80211 phy0: Destroyed STA 68:7f:74:77:36:bc > > ieee80211 phy0: device now idle > > Stopping Tx BA session for 68:7f:74:77:36:bc tid 0 > > Could not find station: 68:7f:74:77:36:bc > > Stopping Tx BA session for 68:7f:74:77:36:bc tid 0 > > Could not find station: 68:7f:74:77:36:bc > > cfg80211: All devices are disconnected, going to restore regulatory settings > > cfg80211: Restoring regulatory settings > > cfg80211: Adding request for country PL back into the queue > > cfg80211: Kicking the queue > > cfg80211: Calling CRDA for country: CN > > ieee80211 phy0: device no longer idle - scanning > > ieee80211 phy0: device now idle > > > > I do have a couple of related debug features in kernel (debugfs for mac80211 > > and ath9k_htc included) - what info exactly would you like me to provide? Or > > maybe some test scenario? > > anything... when the disconnection happen the prior mesgs will be useful > > > > > Also some other strange issue I observed with ath9k_htc (just for record, I'll > > report details them when I run on them again): > > - occasionally it happens I need to change USB port in order to get driver re- > > initialized (as it occasionally happens that device enters some locked state - > > 'net.wlan stop' hangs waiting for it and it needs to be removed from USB port > > to go further. Also after such operation sometimes this USB port appears to be > > useless and even rmmod && modprobe (also on mac80211 and cfg80211 just in any > > case) + reinserting USB stick doesn't help (error loading firmware), but > > plugging to a different USB port works. > > > > A bit earlier (before a set of driver and firmware patches was applied by > > Sujith last week) driver was "broken" to the point that it was actually > > causing my WiFi router Cisco LinkSys WRT120N to freeze completely (router cold > > reset was required in order to restore router operability) - this one is fixed > > so don't bother - just for reference. > > > > -- > > regards > > MM > > > > _______________________________________________ > > ath9k-devel mailing list > > ath9k-devel at lists.ath9k.org > > https://lists.ath9k.org/mailman/listinfo/ath9k-devel > > > > > _______________________________________________ > ath9k-devel mailing list > ath9k-devel at lists.ath9k.org > https://lists.ath9k.org/mailman/listinfo/ath9k-devel