I recently purchased a Sony SBR55X930D tv and a HT-NT5 sound bar with wireless subwoofer. The subwoofer keeps unlinking from the soundbar. I perform the link described in the manual, but the subwoofer will not produce any sound despite the on screen prompt stating that the subwoofer did link.
Have you tried updating the firmware of both units? Updating the software of your units will improve the performance of your product with fixes and new features by installing the latest updates. Visit the links below for more details: