As mentioned previously, linux-backports-modules-jaunty "has an updated compat-wireless stack which may help". You'll probably want to install it by doing (note you'll need to reboot after installing):
sudo apt-get install linux-backports-modules-jaunty -- iwlagn driver crashes, preventing shutdown from completing https://bugs.launchpad.net/bugs/375924 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs