For my case network manager crashed shortly after logging in to lightdm but appeared to recover as I am connected ok via wifi.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/816570 Title: NetworkManager crashed with SIGABRT in raise() Status in “network-manager” package in Ubuntu: Confirmed Bug description: Crashed at boot ProblemType: Crash DistroRelease: Ubuntu 11.10 Package: network-manager 0.8.9997+git.20110721t045648.36db194-0ubuntu1 ProcVersionSignature: Ubuntu 3.0.0-7.8-server 3.0.0 Uname: Linux 3.0.0-7-server x86_64 Architecture: amd64 CRDA: Error: [Errno 2] No such file or directory CrashCounter: 1 Date: Tue Jul 26 20:06:26 2011 ExecutablePath: /usr/sbin/NetworkManager InstallationMedia: Ubuntu-Server 10.04.1 LTS "Lucid Lynx" - Release amd64 ( IwConfig: lo no wireless extensions. eth0 no wireless extensions. NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true ProcCmdline: NetworkManager ProcEnviron: PATH=(custom, no user) RfKill: Signal: 6 SourcePackage: network-manager StacktraceTop: raise () from /lib/x86_64-linux-gnu/libc.so.6 abort () from /lib/x86_64-linux-gnu/libc.so.6 g_assertion_message () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 g_assertion_message_expr () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 nm_manager_get () Title: NetworkManager crashed with SIGABRT in raise() UpgradeStatus: Upgraded to oneiric on 2011-07-26 (0 days ago) UserGroups: modified.conffile..etc.NetworkManager.NetworkManager.conf: [main] plugins=ifupdown,keyfile [ifupdown] managed=true mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2011-07-12T21:36:27.879352 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/816570/+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