We are currently having technical difficulties with our account server. You are going to be unable to log in at this time. We are working on getting the account server back up and running as soon as possible. Players who are currently in game are not affected. We will update this thread when we have more information.
UPDATE: Due to continued issues with the account server we are forced to take it down again for maintenance. Downtime is scheduled for 1 hour.
UPDATE 2: Account server maintenance is now complete.