SUBWOOFER on my 6000 LOSES CONNECTION WHEN CHANGING CHANNELS

I've had the wireless soundbar and subwoofer for 2 years, and SUDDENLY, when I change channels on my SOny, the subwoofer loses the connection. This just started happening and NOTHING at all has changed in the configuration. The only difference in my house is a new modem provided by Comcast. Could this be causing us issues, and if yes, how do we fix? THANKS ALL.

Answers