As you may know, yesterday the SWTOR 1.2 update patch was released on the servers. In the meantime there has been a few issues and the server is under maintenance. Have no fear though, their team is working on it and the servers will be up at the following times.
The servers are expected to be available again at 6:00PM CDT (12:00AM BST, 1:00AM CEST, 9:00AM AEST).
So, take a break, hang in there and come on back to SWTOR land when they come back online.