5G home internet keeps dropping

I was having the router drop the cellular connection, while showing good signal, sometimes three times a day, often during a telework meeting.  I began tracking how often I power cycled the hotspot.  I had two occurrences on 6/3/22, singles on 6/5, 6/10, 6/18, and 6/20.  And then as of 6/22 this problem cleared up.  I'm in Houston TX, in case T-Mobile fixed by infrastructure instead of firmware update.