I have a Samsung Galaxy Tab S 10.5, running Android 6.0.1. It will randomly restart itself, and it seems that the problem is getting more frequent. It does not matter what application(s) I am using. Sometimes I am using my e-reader and haven't touched the screen in a minute or two; other times it happens at the basketball arena where I only check the basketball stats via Chrome during time outs. There doesn't seem to be a single application causing this. It seems to happen most often when I am riding the train to work (and no wi-fi in use), it also happens at the basketball arena (when connected to the wi-fi at the arena), but it only rarely happens during more intense usage at home (using wi-fi). Please advise on how to diagnose this problem. Thank you.