From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wi0-f182.google.com ([209.85.212.182]:34340 "EHLO mail-wi0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751893AbbGQUAs convert rfc822-to-8bit (ORCPT ); Fri, 17 Jul 2015 16:00:48 -0400 Received: by wibud3 with SMTP id ud3so46890530wib.1 for ; Fri, 17 Jul 2015 13:00:47 -0700 (PDT) Received: from linux-suse.hu (catv-178-48-68-209.catv.broadband.hu. [178.48.68.209]) by smtp.gmail.com with ESMTPSA id lz10sm19675945wjb.48.2015.07.17.13.00.46 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 17 Jul 2015 13:00:46 -0700 (PDT) From: =?utf-8?B?U3rFkXRzIMOBa29z?= To: linux-wireless@vger.kernel.org Subject: Difficult to reconnect (RTL8191SU, authentication with xx:xx timed out) Date: Fri, 17 Jul 2015 22:00:45 +0200 Message-ID: <1999704.oWOWvNZ29T@linux-suse.hu> (sfid-20150717_220052_404659_62D85122) MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Sender: linux-wireless-owner@vger.kernel.org List-ID: Dear list members, I have an RTL8191SU USB WiFi card (with rtl8192su driver) and unfortunately it looses network connection many times (reproducibly, and only under Linux). Re-connecting to the previous network is also very difficult because the following error messages appear in dmesg during that: [164797.994074] wlp0s26f7u2: authenticate with 90:f6:52:7d:6e:0e [164798.031433] wlp0s26f7u2: direct probe to 90:f6:52:7d:6e:0e (try 1/3) [164798.232411] wlp0s26f7u2: direct probe to 90:f6:52:7d:6e:0e (try 2/3) [164798.433700] wlp0s26f7u2: direct probe to 90:f6:52:7d:6e:0e (try 3/3) [164798.634457] wlp0s26f7u2: authentication with 90:f6:52:7d:6e:0e timed out When I turn the adapter off (in KDE network manager app), wait about ten seconds, then turn it on again, it can suddenly connect again flawlessly. Since I'm not a kernel developer, I don't know the perfect ways to track down these kinds of issues. Anyway, I ran the following command when I tried to connect multiple times and the driver refused: trace-cmd record -T -e mac80211 -e cfg80211 I uploaded the output which you can reach here: http://home.sch.bme.hu/~szotsaki/trace-auth-time-out.dat I also traced out the firware version: printk(KERN_WARNING "Version: %u\n", hal_get_firmwareversion(rtlpriv)); -> Version: 36926 (which is strange because in the source everywhere a v52- like numbers are referenced). Do you have time to fix this issue and if so, can I provide some more useful input? Thank you very much! All the best, Ákos