There was once an ISP whose customers continually complained that they failed to get service in the early mornings. They set a team of IT boffins onto the problem to try and track it down. Try as they might none could find an answer. Feeling that no glich was going to get the better of them the team work through the night and into the small hours of the morning. At about 4:30 .......

The cleaner arrived .....

Armed with a vacuum sweeper....

Seeing only one power socket ......... unplugged it and .......

Sometimes you need to think sideways to solve a problem :)

Apparently not only does Nature abhor a vacuum so do servers :))