I wouldn’t say it’s common but people have had this issue. Sometimes it’s related to WiFi interference. Do you have a router nearby? Might also be worth limiting 5g WiFi channels to the lower end of the 5g frequencies within the router. The sub and rears communicate via 5.8ghz frequency. If that doesn’t solve it, I’d swap the sub out for a new one as it’s probably defective.Has anyone encountered an issue where the subwoofer makes a sort of popping noise at times? Like a sort of distortion as though it’s blown or something is loose?