Earlier mobile broadband connection seems to work flawlessly but after Upgrading trusty tahr 14.04.1 to linux image 3.13.0-35 there seems to be problem.
First it started popping for USB modem password.
when tried to start it all over again by deleting the connection. network manager doesn't show the mobile broadband option.
lsusb shows the device.
Let me know which module is missing and need to be downloaded.