According to bug 371291 the connect-problem shown above was related to the root-shell still open from modprobing.
However, without reloading the sierra module no UMTS capable device is recognized by nm. -- Sierra Wireless Device not recognized by NM at Boot / works after resume https://bugs.launchpad.net/bugs/399210 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