Problem was probably caused by a defective configuration of a wireless connection. After reinstalling everything networkmanager related and restarting network-manager by sudo service network-manager restart I could start nm-applet, remove the connection and create a new one.
Since then everything works smooth. -- nm-applet crashes if frequent disconnection-reconnection cycle occurs https://bugs.launchpad.net/bugs/326783 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