R4-B II - Subwoofer Dropping Out/No Sound

1. Verify the pair LED on the back of the subwoofer is solid blue to indicate it is connected to the sound bar.
2. Try playing audio with more bass. Examples: action movie or bass heavy music
3. Try adjusting the volume of the subwoofer by pressing the sub volume “+” button on the remote.

If there's still no sound, try pairing to sub to the bar again.