My Android tablet keeps shutting down all at once. Sometimes it it 15 or 20 minutes and sometimes only a minute or two. It seems before it shuts off a message says android.com server has stopped working. The tablet is only 5 months old so I don’t know why it keeps shutting off. I tried doing factory reset twice and it still shuts off. I keep it plugged in also so its not any battery issue. It works great except for this problem.