Here the same problem. I was with 9.10 and suddenly, I couldn't connect any more. Then I add ppa network manager, and nothing. Then I updated to 10.04 and I still here, without connection.
-- GSM modem connection failed: Serial command timed out https://bugs.launchpad.net/bugs/417786 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs