Finally got ahold of someone at the International help line that knew something. You have to enable Mobile Data and International Data Roaming, even though you are trying to avoid costly International Data Roaming charges. I think it is a good service but I think that you can get cheaper solutions by getting a local SIM Card. I saw an unlimited data Sim card at JFK for $60.00, and probably, buying something at an airport is not the cheapest way. For 10 days plus, it will cost us $150.00 total. Divided by two, that is $75.00 each and we don't have unlimited plans. I went this way for simplicity. I did not want to experiment with dual Sim Cards on this phone, and right now, my Note 8 is not functional.
Danny