The crash is always initiated with loss of wireless network. Then I cannot access any network controls from the desktop. I can start the gnome-control-center and turn OFF and then ON the wireless to reconnect to the network. After doing this step the gnome-control-center crashes and generates a bug report. This issue occurred almost all the times when I'm on batter power but last instance it happened when I'm on AC power. I was using a LAN and I removed the Ethernet cable and then I lost the wireless network connectivity. When I followed steps described at the beginning the gnome-control-center crashed. I have attached the last crash report that was automatically generated.
rakitha$ lsb_release -rd
Description: Ubuntu 12.04.2 LTS
Release: 12.04
rakitha$ apt-cache policy network-manager
network-manager:
Installed: 0.9.4.0-0ubuntu4.2
Candidate: 0.9.4.0-0ubuntu4.2
Version table:
*** 0.9.4.0-0ubuntu4.2 0
900 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages
100 /var/lib/dpkg/status
0.9.4.0-0ubuntu3 0
500 http://us.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
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