: If using mods, every player must have the exact same mod versions installed, or the "Multiplayer" button may be greyed out. Can You Play Fully Offline?
: On your Ethernet or Wi-Fi properties, uncheck "Internet Protocol Version 6 (TCP/IPv6)." This is a common fix for Anno 1800 connection issues. anno 1800 lan multiplayer link
If you are playing in the same building and experiencing lag or "Failed to connect to remote IP" (LR39) errors, try these fixes: : If using mods, every player must have
: If the game remains unstable, forward the following ports on your router: TCP: 80, 443 and UDP: 18000 . If you are playing in the same building
: Ensure Universal Plug and Play (UPnP) is enabled in your router settings to help the game discover local players automatically.
: The primary player should select Multiplayer from the main menu and then Host New Game .
Unlike older titles in the series, Anno 1800 . To play together locally, all players must still be authenticated through Ubisoft Connect . However, you can optimize your connection to behave like a LAN session for better performance. Step-by-Step: Setting Up Your Multiplayer Session