March 19, 2018 I bought - RealityXP Garmin GTN 750 (from FltSim.com). My G Data firewall is disconnected and the internet connection is confirmed.Still I do not get any connection to Garmin to download the trainers. Garmin returns the failure code 1603.
Can anybody help me to get it installed?
Could be useful to say where you are located in case that is an influence. And here are links to the error 1603 issue at a reputable sites based on a quick Google search: Hope one helps.