@technog
This may take some time to troubleshoot. Here's why.
It could simply be that the device is bad. That's why they have warranties, to cover such things.
However, it's also possible that certain apps running don't close properly, and can cause issues with your Roku device.
First, ensure your screen saver is something really simple, such as the clock.
Next, ensure you manually check for updates a couple of times. If any update, or anything at all (Engaging Warp Drive, etc) happens, run it again until nothing at all happens during the update. Then, reboot the device using the menu system.
For troubleshooting purposes, pick a single app to watch. Something that you've wanted to binge anyway, if you have something like that, and for the next 24 hours, or until the issue arises, watch just that one app.
Here's where I'm going with this. It could be that an app doesn't close properly, as mentioned earlier. So, if you have only a single app open after it reboots, and a very simple screen saver running, then that reduces the likelihood of something like that. If the issue still occurs, repeat the steps the next day with a different app. If it happens on two days with two different apps (one app per day) then that pretty much determines it's the Roku device. If, however, at least one plays without issue, then you may have a buggy app that's screwing up your Roku. Then we'd need to figure out which one that is and how to deal with it.
DBDukes
Roku Community Streaming Expert
Note: I am not a Roku employee.
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