I haven’t used or setup the WiFly as UDP for such a long time. I will need to look into that.
For the MAP Data when using TCP, the only solution is to disconnect WiFi and browse the map, and it will cache that area. then reconnect to the vehicle. When connect with UDP the phone will use the LTE connection to download the data. This is one reason UDP is preferred connection mechanism (That said I have always used the WiFly in TCP mode Soft AP mode)
