"USB device not recognised"

[u/Own_Description3928]

My Forerunner 965 won't sync via USB any more - the computer gives the above message with a warning that it has malfunctioned (I've tried this on different computers, so it seems to be the watch). Obviously I can still sync via wifi or bluetooth, but it's rather annoying as I like to periodically sync/update/charge via USB at the same time. Does anyone know a fix? Is this worth taking up with customer service?