@soix @allanblissett The outside hardware was checked by a tech a few years ago at my summer location and some equipment was replaced. Again, given that I have had the same experience at two locations, I am not optimistic that this is the problem, . Nevertheless, on your suggestions I will spend the money and schedule a tech visit to be sure. It seems to be a rational move to possibly avoid spending another $800+
@yage Yes, I previously did a factory reset on the one in my summer location to no avail. (Since I use cable and not wi-fi, I’m not sure the reset matters, but I did it any way.) Yes I checked the switch by bypassing it and the problem persisted.