Suddenly no sound from soundbar, HDMI ARC and CEC stopped working

Thanks for keeping us posted, CompC!

We appreciate the attempts, and we're here to help you further!

It is important to understand that not all HDMI ports are created equal. Only the HDMI ARC (or HDMI eARC) port allows your soundbar and Roku TV to communicate properly over the HDMI cable. Double-check the connection and make sure your soundbar is connected to the HDMI port specifically labeled "HDMI ARC" or "ARC" (or "HDMI eARC" or "eARC"). 

We highly suggest trying these steps: Before you look at connection settings, try restoring a possible breakdown in communication using the suggestions below.

• Disconnect and reconnect the HDMI cable. Unplug both ends of the HDMI cable that connects your soundbar and Roku TV. Wait a moment and then firmly reattach both ends of the HDMI cable, making sure to use the HDMI ARC port on your TV.

If the behavior persists:

• Power cycle your soundbar and TV. Unplug the power cord from your Roku TV Ready soundbar and your Roku TV. After a few moments, plug the cables back in and power both devices. Test again.

Please try doing this and see if it helps with what you're experiencing.

Thanks,
Jharra

Thanks for keeping us posted, Gatorgogo wydoihavetoregi!

We truly appreciate all your efforts to resolve the issue, but we understand that it persists.

Please be advised that there is a connectivity issue between your TV and sound bar. We highly recommend that you reach out to your TV manufacturer, as this issue seems to be related to the connectivity between your Samsung TV and Yamaha soundbar. They will be the ones who can handle this kind of issue on both devices.

Please don't hesitate to let us know if there's anything else you'd like us to address. We'd be more than willing to listen and take immediate action, as we are committed to finding a solution to your concerns.

Best regards,
Jharra