Intermittent audio dropout on at least two apps

New issue.  Audio on at least two apps, Fandango purchased movie.  New release, becoming Led Zeppelin drops audio intermittently not during old scenes, but newer voice over audio.  Thought it was the movie, apparently not.  Now tonight, doing it on Paramount+.  at least every minute or two I get a brief 100 ms or longer audio only dropout that is slightly distorted, then returns to regular audio.  A couple minutes later it does it again.  HDMI cable seems fine, but I haven’t tried to replace it with another to see if the problem continues.  A few days I began receiving a blank screen half way through the shows, at the good part of course, saying, “No Network”.  This is new.  When I check the connection it’s at Excellent strength.  Thought the usb power via a newer Samsung might be loosing connection. Ran the power to a separate outlet.  No longer getting the No Network screen, but the audio is now intermittently, dropping out.  Extremely difficult to watch, not enjoyable.  Help Mr. Bill.