BioWare has taken the servers down for some Sheduled Maintenance.
The servers are currently unavailable while we perform scheduled maintenance. We expect the servers to be available again at 10AM CDT (8AM PDT/11AM EDT/4PM BST/5PM CEST/1aM AEST). Please check the Forums or the official SWTOR Twitter page for more information and updates. To check the status of your server, visit the Server Status page.
Below are the patchnotes: