Thank you very much for this suggestion, however, I am one of the fifteen people who does not have cell phone service at all. I have an iPhone7 but no SIM card and connect through a proxy with very vigorous firewall. I can log on to Tesla.com with the app, but the data telling the app that I own a car never gets through to the app. I did one time connect to the app without the firewall and everything worked fine. I have been trying to find out the exact IP address that I would need to have my IT admin whitelist so that my car and the app will connect. Does anybody know what that is, or who I can contact at Tesla to get it?