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[Launchpad Bug Tracker <786229@xxxxxxxxxxxxxxxxxx>]

** Changed in: network-manager (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/786229

Title:
  NetworkManager fails to connect to wireless networks after kdm is
  restarted

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

Bug description:
  Binary package hint: network-manager

  Since Kubuntu 11.04 Natty, NetworkManager fails to connect to wireless networks after a restart of kdm.
  Restarting KDM can be done by running `sudo restart kdm` or by using SAK (Alt + SysRq + K).

  It've noticed it first with a LiveCD and thought the problem was
  limited to it. Unfortunately, it doesn't, and appears on installation
  too.

  To get NetworkManager connecting with a wireless network again, I tried (without luck):
  - unloading the iwlagn driver
  - restarting network-manager
  - rfkill hardware switch
  - rfkill software switch
  - using "disable networks" checkbox in the applet

  Suddenly, I got a  strange feeling that dbus could have something to do with it, so I tried:
  - logout from GUI
  - switch to a console (Ctrl + Alt + F1) and login
  - run: sudo stop dbus
  - run: sudo rm -r /var/run/dbus/ (see also https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/786221)
  - run: sudo start dbus
  - run: sudo restart network-manager
  - switch back to GUI (Ctrl + Alt + F7) and login
  - NetworkManager can connect to wireless networks again

  In Kubuntu 10.10 Maverick, I had no issues with this.

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