From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrej Podzimek Date: Sat, 31 Oct 2009 21:03:31 +0100 Subject: [ath9k-devel] Unreliable connection with AR5008 (AR5416/AR2122) In-Reply-To: <43e72e890910311002y37288d92k77d3248df587d631@mail.gmail.com> References: <4AEC589E.3000404@podzimek.org> <43e72e890910310903o310cc307xf85d2d15e1659734@mail.gmail.com> <4AEC6477.4010700@podzimek.org> <43e72e890910311002y37288d92k77d3248df587d631@mail.gmail.com> Message-ID: <4AEC9813.1020404@podzimek.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ath9k-devel@lists.ath9k.org >>> That's a pretty wild conclusion given that minstrel is not used on >>> ath9k. ath9k uses its own rate control algorithm. Can you please try >>> bisecting between 2.6.29 and 2.6.30? It would be of much help. >> So the ieee80211_default_rc_algo option of mac80211 has no meaning at all? >> >> Unfortunately, I can't find the commit that caused the problem. Don't have >> enough time for so many compilations and experiments. Anyway, there have >> been disassociation problems since I bought the card, so I'm not perfectly >> sure if the failures were absent or just hidden by the fact that there were >> few people walking thorugh the building during summmer holidays. >> >> Anyway, a slightly modified version of my question: Are there any >> alternative rate control algorithms? Trying one of them might be a good >> thing to start with... >> >>> What AP do you have? What AP setup settings do you have? >> I tried three (or perhaps even more) APs. The problem was the same >> everywhere. I only know the type of one of them: Zyxel NBG-420N. It's set to >> WPA2 with EAP-TLS authentication. It does *not* provide any detailed WiFi >> configuration (DTIM period, RTS/fragmentation threshold, beacon interval and >> the like). >> >> The Zyxel AP is a standard basic AP for home computing. The other three (or >> more) APs are enterprise-class devices that form a big network with roaming >> inside a university building. Zyxel NBG-420N supports 802.11n, whereas all >> the other APs only support 802.11g. > > This should not affect anything but.. can you try compiling and > installin the latest git version of wpa_supplicant? OK, compiled the current version from GIT. I can still see deauthentications in the log. However, the network hasn't got stuck yet. It's too early to make a conclusion, I'll report back after two days or so. There's a new line appearing in the logs before each deauthentication: ath9k: Two wiphys trying to scan at the same time I haven't seen this one before. Andrej