@mmettelmann-
Roku operating system version 10.5, which is currently rolling out, has added a new "Power" item in the Settings > System menu for some of the latest Roku models. In my estimation, these power management options don't work very well. If this is the cause of your problem, pressing the Roku remote's Home key should bring it to life without having to unplug the device.
If you have a "Settings > System > Power" menu item, under "Auto power savings" see if deactivating "After 20 minutes of no interaction" keeps the Roku from shutting down.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
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Ultra 4800 | Streaming Stick 4K+ 3821 | TCL Roku TV 43S245/C107X
