I have only had my Forerunner 15 for a week or two. The first time I connected it to my computer, it synchronised perfectly; I was very pleasantly surprised by how quick it was. Then, two days ago, I connected it, and it didn't synchronise. I looked at Garmin Express: the device is connected, the device software is up to date, the 'last sync' date/time is Saturday, the 'sync now' button is faded (as if it had already been clicked) and the circle of orange dots to its left is going round and round, but the data is not syncing. Each day, I have had it connected for up to one hour, but it has not synchronised. Within the Garmin folder on my computer, there is a file GarminDevice.xml, which has the date/time as just now (suggesting that something has uploaded), and within the Monitor folder (which is dated 6 March - that would probably be the first day I used the device) are files dated each day, including today's (also suggesting that something has uploaded), but Garmin Connect is not synchronising, and the data is not updating/uploading to the Garmin Connect website/my dashboard page. Any assistance would be greatly appreciated.
I've scoured all the other threads, and can't find another thread with this precise issue. On other threads, the sync completes, or there is some other variation.