Picture with no sound at all is a different issue from sound that's just out of sync — here's where to look first.
Complete silence during playback, with picture still working, usually comes down to one of a few settings rather than a deeper problem.
Revisit your setup with our guide on connecting a streaming device to a soundbar — audio routing between a TV and soundbar is a common source of this exact issue.
That's a different, separate issue — see our guide on fixing audio that's out of sync while streaming.
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