Suggest trying this uninstall Java from your PC and install the latest version of Java from their website in offline mode.

@magge said in Solutions for common errors with the FAF client launcher or supreme commander:

Something is blocking the client to have access to the internet, or you have a very unstable connection.

Check if your internet connection is stable
Check if firewall is blocking the access
Disable security software for testing purpose
Try a VPN from a different country