If you are powering your Roku by plugging into the USB port on the TV, try powering from house power via the USB power adapter that came with the Roku. Many USB ports only supply 0.5 amp which is not enough to power a Roku reliably.
If you don't have the Roku adapter handy, any other you have from another device should work as long as the fine print on it says it outputs at least 1 amp.
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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Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X
