"Tonight from 10:00PM until 6:00 AM ATRL may be unavailable as we run some diagnostic tests."
The server has been like this for a year, and they seem to know why each time yet they are running diagnostic tests to see what's wrong?
The only problem is that whoever works on the server is lazy. It shouldn't take a year to switch, it shouldn't take now to see what's wrong, and you shouldn't be comfortable letting a site as big as this act up like this every 5 minutes.
Firing needs to be done.