surroundbar 6000 subwoofer loses connection

first off, thanks for this forum
First post

My Surroundbar 6000 is about two years old. It has worked well up until the past week or so.

The subwoofer appears to lose (wireless) connection at random. The indicator light goes to red or to flashing green. Sometimes powering the subwoofer off and on fixes it. Sometimes powering the sound bar off and on fixes it
I have not moved the positions of the sound bar or the subwoofer.

Any ideas?

If this has been answered, I apologize; please point me to it. I didn't find anything with a search of this forum.

Thanks