Hi,
My Garmin Forerunner 25 sometimes won't upload a file when it syncs and when I try to import it online it says that garmin connect doesn't support the file type (it is a .fit file). It has happened 4 or 5 times in the last 6 months and is very frustrating every time. I have stopped pen and paper tracking of workouts etc. to use garmin and strava to track better and is frustrating when this happens and I have a week that doesn't fit in with online tracking.
Thanks