I will be watching tv and the roku will stop working and I have to restart it . It happens all the time only on my one tv. What can I do to fix it
Mine is doing the same thing. Ultra 4800x device. Has been doing on Acorn for couple of weeks. Now it’s doing on Sling.
First thing to check:
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.
The ports on many televisions only supply 0.5 amp or less, which is not enough to power a Roku reliably. It may appear to start up okay, but when it runs into something that requires more power than the tv's USB port can provide, something's got to give. Frequently this results in shutting down the stream you are viewing and exiting back to the Roku home screen.
If this is a new problem, possibly an update to either the Roku operating software or to some channel app software is using a little more power than in the past, triggering this problem.
If you don't have a Roku adapter handy, any other USB adapter you have from another device should work as long as the fine print on it says it outputs at least 1 amp.
The above suggestion does not apply to your Ultra. It has its own 12 volt "wall wart" power supply and does not use a USB connection for its power.