Hi, @rikb007
Greetings, and welcome to the Roku Community.
I understand the issue you have experienced with your Roku remote that no longer controls the TV's power and volume, and I'm here to help you resolve the issue.
Let's set your remote once again.
How to set up your voice remote after initial setup and activation
After your Roku device is activated and set up, you can access the settings menu at any time to set up your voice remote to control your TV. If your Roku device is connected to an AVR or soundbar, we recommend temporarily connecting it directly to your TV during setup to successfully detect the brand of your TV.
- Press Home
on your Roku voice remote
- Scroll and select Settings
- Select Remotes & devices
- Select Remote
- Choose your voice remote from the list and select Set up remote for TV control
- Follow the on-screen prompts to complete the process
For more information, you can visit this support article on How to set up your Roku voice remote to control your TV
I hope this helps, and let us know what you find out.
Thanks,
The Roku Community Team.
Takashi O.
Roku Community Moderator