New LG OLED 65" Smart TV and new LG Sound Bar. From first setup we're getting a 1 or 2 second sound loss every 15 minutes or so. It was happening with the optical cable. I swapped to HDMI cable and it's still happening. It doesn't happen when using TV speakers. How can I fix this? It happens when using the TV and when playing a DVD on a BluRay player. I haven't tried it yet with a BluRay disc yet. Thanks.