A few minutes ago (3:36 EST) several servers disconnected and it has caused a lot of players to start spamming on login.
Mine in particular shut down without any action on my part. I got a message on RC saying something about the player accounts database being inaccessable, and to try again later, which I did.
It is possible to restart your server if you are the administrator by logging in again. Just thought I'd let people know.