Anno 1800 Lan Multiplayer Fixed -

Make sure you and your friends are running the same game version. You can check for updates in the game's settings menu or on the Ubisoft website.

Minimize the game and your friend directly through the Ubisoft Connect friend list.

is allowed through the Windows Firewall for both Public and Private networks. Troubleshooting Desyncs & Mods anno 1800 lan multiplayer fixed

Are you playing via a or an online LAN/VPN setup (like Hamachi)?

Anno 1800 relies on specific network ports to transmit game data between players. If your router blocks these ports, LAN connections will fail. Access your router's gateway page to open the following ports: Make sure you and your friends are running

To prevent mid-game desynchronization (desyncs), which force players to reload heavy save files, implement these gameplay habits:

Corrupted network cache files can prevent your PC from communicating reliably with other local machines or Ubisoft's authentication servers. is allowed through the Windows Firewall for both

If you’ve tried playing Anno 1800 over LAN recently, you know the pain: