Sedert 2 dagen is er geen verbinding tussen Garmin en Strava, voordien altijd ok, er is niks aan mijn instellingen gewijzigd

There was a Strava sync issue a few days ago. Disconnecting then reconnecting to Garmin from the Strava web site should fix your problem.

• Go to https://www.strava.com/settings/apps
• Click on Garmin Connect, Revoke Access
• Click on Social Connections, Connect with Garmin
• Follow the on-screen prompts to sync activities and/or courses.