Hi Mike
I wouldn't do anything initially, it was working before I am sure they will get down to the problem and fix it. Yours is working otherwise with your TZT, correct? This is just one part of their subscription service. I am sure like your home cable if down for a few days or week they will normally credit you some service time or give you a free month. While I think they were misinformed when you talked to them initially, I am sure it will get fixed and they will take care of you. I have had good experiences with them. If this is the largest problem with boat ownership, I would say you are doing quite well.