I think I’ve figured out why MT.Net’s webserver shuts down mysteriously in the mornings. The power company sends a burst signal through the lines when it wants to control the demand-side appliances, such as water heaters, to save electricity. This burst always makes my UPS complain, as it misinterprets it as a power outage. What I’m thinking is that after ten years of life, the UPS’s batteries have finally drained to the point that they can’t even ride over this split-second power fluctuation.

I’m going to plug the server directly in to the outlet to see if that helps.