are added as exceptions in your Windows Firewall and any third-party antivirus software. Some users find that only completely disabling the firewall briefly reveals if it is the culprit. Content Manager Settings : If you use Content Manager, go to Settings > Content Manager > Drive and ensure the
: Power cycling your network hardware can clear temporary IP conflicts or DNS cache issues. are added as exceptions in your Windows Firewall
: If you are hosting or trying to join specific dedicated servers, ensure the following ports are open in your router and Windows Firewall : UDP : 9600 TCP : 9600, 8081 : If you are hosting or trying to
If you’ve been staring at the Assetto Corsa launcher only to be met with the dreaded red text— “The server seems to be unavailable” —you’re not alone. This frustrating error blocks you from browsing online lobbies, joining friends, or accessing community servers, especially when using Content Manager or the official Kunos launcher. Follow the sections in order — start with
How to Fix “The Server Seems to Be Unavailable” Connection Issue in Assetto Corsa
This article walks through causes and step-by-step fixes for Assetto Corsa (including Assetto Corsa Competizione where applicable) showing the error “the server seems to be unavailable” or otherwise failing to connect to multiplayer servers. Follow the sections in order — start with simple checks, then progress to router/PC configuration and advanced troubleshooting.