My data is not syncing because I am prompted to consent to upload. When I accept, I continue to get server unavailable. However, the servers seem be up because my Edge 500 did get a SW update. Also, checking servers at https://connect.garmin.com/en-US/status shows all green. Screen shots below.
Update. I created a totally new account and then imported all the old activities. This solved the problem, though I now have a rogue account out there. Seems and issue with my account in Garmin Connect. Hope this helps folks.