Hi @Gbunn2,
Welcome to the Roku Community!
We understand that you are facing an issue with the Roku Streambar disconnecting when your TV turns off. We'd be happy to take a closer look to see how we can help.
Please be aware that if your TV does not have an ARC port and if you using an optical cable, be sure to remove the protective plastic cap from each end of the cable before inserting the connectors. Failing to do so may result in a faulty connection or damage to the cable or optical port.
If the behavior continues, review the suggestions from our Support page for more information on How to set up your Roku Streambar | Roku
Additional Roku resources that you might find helpful: How to set up your Roku Streambar with a non-Roku TV | Official Roku Support
Please keep us posted and we'll continue assisting you from there.
Best regards,
Mary
Mary F.
Roku Community Moderator