[The previous message is logged at <http://bugs.debian.org/641424>.] On Tue, 2011-09-13 at 12:15 +0100, Miguel Martinez wrote: > Package: linux-2.6 > Version: 3.0.0-3 > Severity: normal > > Dear Maintainer, > > My laptop (T400, Intel WiFi Link 5300) is connected at university using > Eduroam, an WPA2-enterprise network. After configuring the interface > (either KDE or Gnome2 versions of network-manager), a connection will > be established. After a while, however, the connection will be dropped > (local reason 3), and will not be reestablished (Reason: 23) after an > indefinite number of attempts. Apparently, nm is not able to renew the > IP. > > >From the dmesg output, it seems the wifi card is struggling to decide > which of two AP it should connect to. Extract from dmesg right after the > first disconnect: I think that's a symptom, not a cause of the failure. > [ 817.555025] wlan0: deauthenticating from 00:16:9d:7c:97:02 by local choice (reason=3) > [ 817.565665] cfg80211: Calling CRDA to update world regulatory domain > [ 817.575513] wlan0: authenticate with 00:16:c7:71:a1:42 (try 1) > [ 817.578148] wlan0: authenticated > [ 817.579185] cfg80211: World regulatory domain updated: > [ 817.579192] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) > [ 817.579200] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) > [ 817.579209] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) > [ 817.579216] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) > [ 817.579224] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) > [ 817.579232] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) > [ 817.580656] wlan0: associate with 00:16:c7:71:a1:42 (try 1) > [ 817.583046] wlan0: RX AssocResp from 00:16:c7:71:a1:42 (capab=0x431 status=0 aid=78) > [ 817.583049] wlan0: associated > [ 818.626062] wlan0: deauthenticated from 00:16:c7:71:a1:42 (Reason: 23) > [ 818.634705] cfg80211: Calling CRDA to update world regulatory domain > [ 818.644952] cfg80211: World regulatory domain updated: > [ 818.644960] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) > [ 818.644969] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) > [ 818.644977] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) > [ 818.644985] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) > [ 818.644993] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) > [ 818.645000] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) > [ 821.971502] wlan0: authenticate with 00:16:9d:7c:97:02 (try 1) > [ 821.974151] wlan0: authenticated > [ 821.977578] wlan0: associate with 00:16:9d:7c:97:02 (try 1) > [ 821.979659] wlan0: RX AssocResp from 00:16:9d:7c:97:02 (capab=0x431 status=0 aid=205) > [ 821.979668] wlan0: associated > [ 823.018591] wlan0: deauthenticated from 00:16:9d:7c:97:02 (Reason: 23) > > Disabling and reenabling the network helps to reconnect to Eduroam, but > will not last for long, repeating the pattern described above. > > I first thought it was an issue with knetwork-manager in Wheezy's KDE > [1], so I upgraded to testing. 'wheezy' is the testing suite at the moment. Did you start from an earlier installation of testing, or from stable ('squeeze')? > The issue remains in all kernels I've > tried. I've also tried installing Gnome 2.32 from testing and using > nm-applet. > > Following suggestions in some bug reports [2], I've tried disabling 11n > and/or disabling power management (seems to be off in any case), but it > doesn't help. This is all more puzzling, since my Ubuntu 10.10 partition > has no such problems with Eduroam. I should note that Ubuntu 10.10 does > disable 11n, but it's reenabled for 11.04 and later. I will try OpenSUSE > 11.4 from a live USB to see if the problem also exists there. > > Finally, it should be mentioned that WPA2 at home works without issues, > and with 11n enabled (where I'm writing this from). > > Regards, > > Miguel > > [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=594452 > [2] > https://bugs.launchpad.net/ubuntu/maverick/+source/linux-firmware/+bug/630748 > > > -- Package-specific info: > ** Version: > Linux version 3.0.0-1-amd64 (Debian 3.0.0-3) (ben@xxxxxxxxxxxxxxx) (gcc version 4.5.3 (Debian 4.5.3-8) ) #1 SMP Sat Aug 27 16:21:11 UTC 2011 > > ** Command line: > BOOT_IMAGE=/boot/vmlinuz-3.0.0-1-amd64 root=UUID=26d17817-1add-4b72-8386-1039a90eb83a ro quiet acpi_sleep=sci_force_enable intel_iommu=on pcie_aspm=force [...] I don't think it's likely to be relevant, but could you test without the 'pcie_aspm=force' option? Ben. -- Ben Hutchings To err is human; to really foul things up requires a computer.
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