Both are on latest version. I've had this issue since the day I have my Garmin edge explore 2.
What I do is:
Make a route or download a route (gpx) and send it to garmin connect app on iOS. Then after importing I click on the send to device button. App says it will be ready when device is done syncing.
On garmin device it takes ages to sync. Not only a new route via connect app, also after a ride and I stop the tracking, it takes forever to sync up. What's the device doing??
I already tried de-coupling the device from connect and re-connecting it. Didn't work.
Anyone with any tips?