DavidR
3
Well the third image pretty well answers your own question. Though server backup adds to the load it shouldn’t take it down to do the backup.
Often when there is a rash of 405 and 402 errors and and searches that you do or high intensity actions, such as using the ‘Show unread posts since last visit.’ link slows it to a crawl. At times like this it can result in the forum not being available.
Fortunately I was tucked up in bed whilst all of this was going on.