Comment 1 for bug 372161

Thank you for taking the time to report this bug and helping to make Ubuntu better.
To better help us troubleshoot your issue could you execute the command
'apport-collect -p network-manager 372161'
in a terminal the next time this occurs.

This will gather a lot of debugging information related to your issue and automatically
attach that debugging information to the bug.

To run apport-collect you may need to install the package python-launchpadlib
(apt-get install pythonplaunchpadlib)

Thanks in advance