Happens when I am deleting lots of programs and randomly when I am watching playback.
Blue light goes off and everything
Fixed by unplugging it and plugging it back in
Not a Roku
I keep it on its side to prevent overheating
Happen to anyone else?
I suggest you open a Support Ticket with Tablo so they can look into your logs and find out why this is happening. Some users have been posting this issue so the more they know the more they can do to fix it in a future firmware update.
I assume you're running 2.2.12?
There is a known issue with the firmware for some people, to be fixed soon hopefully. See the thread below, last post. This may be your issue.