Garmin express ouverture log. impossible

Bonjour,

je suis toujours dans l'impossibilité d'ouvrir garmin express.message d'erreur..Garmin express can't open because the internet connection is being blocked. Try disabling your firewall and proxy settings and open Garmin express again.
If that doesn't work, you may need to contact your network administrator to ensure your network you're on isn't restricting access, or contact your internet services provider to make sure they aren't blocking the connection"
y'a t-il quelqu'un qui pourrait me détailler la manip a faire URGENT.......
merci..