My Mac Book is no longer recognising my mobile broadband dongle. This is the window that I now see: http://puu.sh/p6Smt/5a8509ccb8.png. I've shut down, restarted, and everythign I can think of to try and coax it into recognising the device. I upgraded my operating system last week to El Captain, and I wonder if that is what has caused the issue. Any ideas on how I can fix it?
Many thanks
Vicky
