Comment 5 for bug 946556

network-manager - 0.9.3.995+git201203081848.bba834f-0ubuntu1~mtrudel2 has been uploaded to the ~ubuntu-desktop PPA; it will be build and become available in the next few hours. It would be helpful if those who are seeing this error could test this package: I've included a patch from upstream that appears to solve the issue; along with a bunch of additional changes that we want to land in Precise. See https://launchpad.net/~ubuntu-desktop/+archive/ppa

Please don't hesitate to report here with whether things work for you or not with that updated package :)