Have you installed Garmin Express? Have you connected the device to your computer via a USB cable, and if so, did your computer recognize the device?
Yes. Yes and Yes. I have been using Garmin Connect for a year now with no problems - uintil recently when I am experiencing the issues as described. I can manually upload the files but that is a bit of a pain.
I have serious issues with the transfer of activities from Garmin Express to Garmin Connect, both recognize my 910xt, but the last activity it recognized is in September, help!!