the connection to wordpress.com does not work.
site_inaccessible Fehlerdetails: The Jetpack server was unable to communicate with your site [HTTP 404]. Ask your web host if they allow connections from WordPress.com. If you need further assistance, contact Jetpack Support: http://jetpack.me/support/
is it because of using xampp?
are there any ways to run the jetpack-plugin with xampp?