Are you running Fedora 21? And are you trying to establish a Broadband Connection? And you can not get it to work? And I used to work nicely under Fedora 19 & 20?
This is caused by the fact you try to establish the connection, and your Gnome desktop does not ask you for . . . → Read More: Fedora 21 & Broadband connections not working -> Workaround to enter your PIN