Having similar issues - the whole thing has worked well for about a day. I've now lost internet connectivity from/to the car and can neither log in from the car, nor connect to it from the MyAudi app. Audi Digital Services have been woeful... over week now and each time I contact them quoting the same case ID, they take me through the usual hoops of turning off/on/deleting/adding users/car etc. I've come to realise I don't think they have a clue!