I keep having this problem: I use my Garmin Edge 520 to load my bike rides into Strava via Garmin Express. Sometimes it works. Sometimes it doesn't. Today I did a short ride, 27k. Got home and expected it to sync with 60seconds as last week and the week before that. But it wouldn't sync. I tried reloading Express but when it comes to the bit where it has to recognise your device, it doesn't. So I experimented with my 510. I took it ut for a 27 second run. Before I went I checked it was recognised. All OK. When I came to load it it simply didn't get recognised. I am so sick of this. This issue went on for the whole month of August which actually ruined my cycling holiday in France. Why is it that we can't get a constant level of service?