I have cable and have a wired connection. it goes for a hour and a half then dies. about half way through. at work my connection is slow and it just took longer then stopped. I wish you could download the files then connect. maybe it is timing out the garmin connection. I don't know for sure but I( have tried it several times with no luck. I have updated them before and I am wondering if it is a new software glitch with the connect app. don't need the new maps but just wondering.