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[svenmeier <1414972@xxxxxxxxxxxxxxxxxx>]

** Attachment added: "wpa_supplicant_reconnect_fails_after_reload.log"
   https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1414972/+attachment/4306403/+files/wpa_supplicant_reconnect_fails_after_reload.log

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https://bugs.launchpad.net/bugs/1414972

Title:
  wpa_supplicant does not reassociate after reloading wifi driver

Status in bcmwl package in Ubuntu:
  New

Bug description:
  Background information:
  I'm investigating problems with suspend from resume and my wifi driver rtl8723be. For this I added my wifi module to SUSPEND_MODULES in /etc/pm/config.d/modules. What I noticed is that after reloading of the module on suspend, wpa_supplicant is not able to associate with the network.

  To identify the reason of this bug I stopped network-manager and
  started wpa_supplicant from the terminal:

  $ sudo wpa_supplicant -dd -i wlan0 -c wpa.conf

  Log of successful association with network is attached
  (wpa_supplicant_connect.log)

  Then I unloaded the wifi driver:

  $ sudo modprobe -rv rtl8723be

  Log of the following disconnect is attached
  (wpa_supplicant_disconnect_after_unload.log)

  Then I reloaded the wifi driver:

  $ sudo modprobe -v rtl8723be

  Log of failing wpa_supplicant is attached
  (wpa_supplicant_fails_after_reload.log)

  After stopping wpa_supplicant and restarting it, it successfully
  associates with the network again.

  Note that this is independent of the used wifi driver, as I was able to reproduce the problem on another machine with iwlwifi too.
  Installing version 2.3 of wpasupplicant didn't help.

  $ lsb_release -rd
  Description:	Ubuntu 14.10
  Release:	14.10

  $ apt-cache policy wpasupplicant
  wpasupplicant:
    Installed: 2.3-1
    Candidate: 2.3-1
    Version table:
   *** 2.3-1 0
          100 /var/lib/dpkg/status
       2.1-0ubuntu4 0
          500 http://archive.ubuntu.com/ubuntu/ utopic/main amd64 Packages

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