I have two forerunner 310XTs. I am able to find both devices in Garmin Express. One I have been able to use to connect to the express server and upload data to Garmin Connect. The 2nd, when I try to connect tells me that there are issues with Garmin Express servers. So clearly one watch will upload and one won't but I don't understand what could be different between the two watches.
Any ideas out there?