ISXOgre is moving to a new server. It's within the same building, just to a move powerful server.
Assuming no problems, there should be very minimal to no down time at all. (While they are moving the server, everything should just flip over to the secondary auth until it's done).
I'll update this if there are issues and when it's completed. If you have any issues from now until it's completed, feel free to post them here with as much data/copy/paste as you can and I'll investigate.