I am having problems with Garmin Express, when I to transfer a course from my PC to my Edge 520 I keep getting a transfer error, I reset my garmin and now lost all my strava segments as well. When it tries to upload my user settings I get the same transfer error followed by some files were not updated. My device works fine with the app and uploads my rides to Garmin and Strava. Tried two different PC's one with windows 7 and one with Win10 both same issues. Looked at the support site regarding wifi and i' m using my home wifi. Can someone help ruined my edge now with no segment data. It did manage to upload the latest firmware for my edge which is rather strange.