i had a similar problem, I thought it was a device mounting problem, but for me the answer was simpler than that. check to see that you have modemanager from synaptic. apparently, networkmanager didn't mark it as dependent in this version, only recommended.
I get the feeling that evdo devices were not managed through this package earlier... one restart and it took a few extra plug-and-unplug attempts. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/431177 Title: Dell 5520 Mobile Broadband card is again not beeing detected by NetworkManager 0.8 on Karmic -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs