@BrechtSchamp I agree I wasn't suggesting reboots shouldn't be logged it to me it didn't sound like the answer to the OP's question.
@damienleick By what you have described if this is a constant issue it sounds like the restart is simply a temporary fix and not a solution. I would be putting pressure on your staff to investigate the problem instead of just rebooting the device no only for your benefit but for the clients using the network who are probably also being affected.
I agree manual restarts should be shown in the event log though.
If you found this post helpful, please give it Kudos. If my answer solves your problem, please click Accept as Solution so others can benefit from it.