Should also be noted that simply killing nm-applet and restarting it are sufficient to restore functionality:
killall nm-applet; sleep 1; nohup nm-applet & ** Bug watch added: GNOME Bug Tracker #691516 https://bugzilla.gnome.org/show_bug.cgi?id=691516 ** Also affects: network-manager-applet via https://bugzilla.gnome.org/show_bug.cgi?id=691516 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager-applet in Ubuntu. https://bugs.launchpad.net/bugs/825897 Title: network-manager becomes unresponsive, requiring a service restart Status in Network Manager GNOME Applet: Unknown Status in “network-manager-applet” package in Ubuntu: Confirmed Bug description: After network-manager has been running for a while (overnight) it becomes unresponsive: - unable to uncheck "Enable Wireless" - doesn't list the numerous additional networks under "More Networks" - doesn't find new networks This behavior persists until the network-manager service is restarted via: sudo service network-manager restart ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: network-manager 0.8.4~git.20110319t175609.d14809b-0ubuntu3 ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7 Uname: Linux 2.6.38-10-generic x86_64 NonfreeKernelModules: nvidia Architecture: amd64 Date: Sat Aug 13 09:25:50 2011 IfupdownConfig: auto lo iface lo inet loopback InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027) NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true ProcEnviron: LANGUAGE=en_US:en PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: network-manager UpgradeStatus: Upgraded to natty on 2011-07-25 (19 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager-applet/+bug/825897/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp