We pulled logs from the box and nothing stands out. Per your DVR schedule, it's not timers. Are the Joeys left on Live TV, Netflix, other apps, etc. during the chosen 4AM update time?
We've talked about this previously, but your setup is not what we consider to be an approved install, due to the amount of Hopper Internet Connectors you have. There are errors every day, for as long as I can see back, showing that there is more than one DHCP server on your home network. This will cause issues.
Sometimes things work for awhile, then won't, due to software changes. If you need help getting your install to an approved state, I'm happy to help.