LOL....not helpful, guys.
A power surge or a sudden loss/restore can cause all the events you mention, even if you have a UPS on the equipment, unless it's a really beefy, sine wave output unit, which is much more expensive than the standard, simulated sine wave which causes a serious spike of a triangle wave when those types of power events occur.
If you don't have your equipment supplied with a UPS, then it's those recently discovered aliens that have been looking at earth for centuries. They just want to mess with you.
Rcaman