nagraj, It could be due to service outage in your area. I am seeing frequent disconnection problem here (device disconnects regularly on 250mb of data usages). BTW, follow this guide (https://wiki.ubuntu.com/DebuggingNetworkManager) and attach the debug info here.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/673459 Title: Support for BSNL 3G (Teracom USB devices) -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
