A:Answer Hello Robin,
Please try to reset your subwoofer as well as your soundbar by unplugging everything from power for a few minutes. I would also suggest to remove any potential electronic devices nearby that could cause interference, such as microwave, smart lights...
If you need any assistance, please don't hesitate to contact our support team: https://global.bose.com/en_us/index.html
Best regards,
-Lau (Bose Customer Support)