RESOLVED: Everything is back online. If you are stuck on the log on screen a restart should fix this problem.
UPDATE: One of our hosts got disconnected from a datastore causing a few servers to crash. Our host is restarting now and we should have things reconnected and turned on in 15 minutes.
We are experiencing a small network problem. Printing services were knocked offline during a network upgrade being performed. I expect to have it back online within a few minutes.