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[Trafex <ubuntu@xxxxxxxxx>]

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https://bugs.launchpad.net/bugs/894325

Title:
  wifi disconnects randomly and gives a authentication timeout

Status in “network-manager” package in Ubuntu:
  New

Bug description:
  I get randomly disconnected from the wifi network. When I watch the
  syslog I see a warning that might explain it. The full syslog is
  attached in the bugreport but below I've added the important part.

  When I disabled and enable my wifi adapter I can connect again.
  The security for the wifi accesspoint is WPA2 - Enterprise - AES with PEAP authentication and MSCHAPv2.

  Nov 24 11:20:51 tim-thinkpad wpa_supplicant[1530]: Trying to authenticate with xx:xx:xx:99:0b:00 (SSID='<hidden>' freq=2472 MHz)
  Nov 24 11:20:51 tim-thinkpad NetworkManager[1244]: <info> (wlan0): supplicant interface state: completed -> authenticating
  Nov 24 11:20:51 tim-thinkpad kernel: [ 9571.829545] wlan0: authenticate with xx:xx:xx:99:0b:00 (try 1)
  Nov 24 11:20:51 tim-thinkpad kernel: [ 9572.027219] wlan0: authenticate with xx:xx:xx:99:0b:00 (try 2)
  Nov 24 11:20:51 tim-thinkpad kernel: [ 9572.226811] wlan0: authenticate with xx:xx:xx:99:0b:00 (try 3)
  Nov 24 11:20:51 tim-thinkpad kernel: [ 9572.374484] wlan0: no IPv6 routers present
  Nov 24 11:20:52 tim-thinkpad kernel: [ 9572.426441] wlan0: authentication with xx:xx:xx:99:0b:00 timed out
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327235] ------------[ cut here ]------------
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327293] WARNING: at /build/buildd/linux-3.0.0/include/net/mac80211.h:3081 rate_control_send_low+0xf9/0x190 [mac80211]()
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327299] Hardware name: 42433ZG
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327303] Modules linked in: bnep rfcomm parport_pc ppdev dm_crypt pci_stub vboxpci vboxnetadp vboxnetflt snd_hda_codec_hdmi snd_hda_codec_conexant vboxdrv ftdi_sio binfmt_misc usbserial snd_usb_audio snd_usbmidi_lib joydev uvcvideo videodev v4l2_compat_ioctl32 cdc_ncm usbnet cdc_wdm cdc_acm arc4 btusb bluetooth snd_hda_intel snd_hda_codec snd_hwdep snd_pcm thinkpad_acpi snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device psmouse serio_raw iwlagn mac80211 cfg80211 snd_page_alloc snd mei(C) soundcore nvram lp parport hid_logitech ff_memless usbhid hid sdhci_pci sdhci ahci libahci wmi firewire_ohci firewire_core crc_itu_t i915 drm_kms_helper drm i2c_algo_bit e1000e video
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327410] Pid: 8822, comm: kworker/u:1 Tainted: G         C  3.0.0-13-generic #22-Ubuntu
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327415] Call Trace:
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327434]  [<ffffffff8105e8af>] warn_slowpath_common+0x7f/0xc0
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327442]  [<ffffffff8105e90a>] warn_slowpath_null+0x1a/0x20
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327468]  [<ffffffffa0229d79>] rate_control_send_low+0xf9/0x190 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327487]  [<ffffffffa02ab385>] rs_get_rate+0x65/0x1c0 [iwlagn]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327513]  [<ffffffffa022a3d6>] rate_control_get_rate+0x96/0x170 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327540]  [<ffffffffa0234dd8>] ieee80211_tx_h_rate_ctrl+0x1b8/0x4f0 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327566]  [<ffffffffa0235928>] invoke_tx_handlers+0x1c8/0x260 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327589]  [<ffffffffa0235a1a>] ieee80211_tx+0x5a/0xc0 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327612]  [<ffffffffa0235b2b>] ieee80211_xmit+0xab/0x1c0 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327621]  [<ffffffff814cb343>] ? __alloc_skb+0x83/0x230
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327645]  [<ffffffffa0236aaa>] ieee80211_tx_skb+0x5a/0x70 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327670]  [<ffffffffa021d15d>] ieee80211_send_delba+0x11d/0x190 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327694]  [<ffffffffa021ebf0>] ___ieee80211_stop_rx_ba_session+0x120/0x220 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327706]  [<ffffffff815ea4e9>] ? _raw_spin_unlock_bh+0x19/0x20
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327729]  [<ffffffffa021e104>] ? ___ieee80211_stop_tx_ba_session+0x1f4/0x210 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327752]  [<ffffffffa021ed4d>] __ieee80211_stop_rx_ba_session+0x5d/0x80 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327775]  [<ffffffffa021e501>] ? __ieee80211_stop_tx_ba_session+0x1/0x80 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327798]  [<ffffffffa021ceb9>] ieee80211_sta_tear_down_BA_sessions+0x59/0x70 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327823]  [<ffffffffa0221d43>] ieee80211_set_disassoc+0x123/0x2b0 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327845]  [<ffffffffa0221f22>] ieee80211_sta_connection_lost+0x52/0xb0 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327870]  [<ffffffffa0227cc0>] ? ieee80211_teardown_sdata+0xe0/0xe0 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327893]  [<ffffffffa0224731>] ieee80211_sta_work+0x131/0x180 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327916]  [<ffffffffa0227f78>] ieee80211_iface_work+0x2b8/0x350 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327939]  [<ffffffffa0227cc0>] ? ieee80211_teardown_sdata+0xe0/0xe0 [mac80211]
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327949]  [<ffffffff8107c04a>] process_one_work+0x11a/0x480
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327956]  [<ffffffff8107cdf5>] worker_thread+0x165/0x370
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327963]  [<ffffffff8107cc90>] ? manage_workers.isra.30+0x130/0x130
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327971]  [<ffffffff8108129c>] kthread+0x8c/0xa0
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327978]  [<ffffffff815f38e4>] kernel_thread_helper+0x4/0x10
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327986]  [<ffffffff81081210>] ? flush_kthread_worker+0xa0/0xa0
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327993]  [<ffffffff815f38e0>] ? gs_change+0x13/0x13
  Nov 24 11:20:53 tim-thinkpad kernel: [ 9574.327998] ---[ end trace d9a7a482c6bfdba3 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: network-manager 0.9.1.90-0ubuntu5
  ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
  Uname: Linux 3.0.0-13-generic x86_64
  ApportVersion: 1.23-0ubuntu4
  Architecture: amd64
  CRDA: Error: [Errno 2] No such file or directory
  Date: Thu Nov 24 11:25:45 2011
  EcryptfsInUse: Yes
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110921.2)
  IpRoute:
   default via 192.168.3.1 dev eth0  proto static 
   169.254.0.0/16 dev eth0  scope link  metric 1000 
   192.168.3.0/24 dev eth0  proto kernel  scope link  src 192.168.3.246  metric 1 
   192.168.3.0/24 dev wlan0  proto kernel  scope link  src 192.168.3.245  metric 2
  Keyfiles: Error: [Errno 2] No such file or directory
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2011-10-17T08:43:09.341793

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