Anno 1800 Lan Multiplayer Official

While traditional offline LAN is unavailable, you can still play with friends locally by using the standard online multiplayer menus:

Even though you cannot play 100% offline over a local network, you can still host private matches that look and feel just like a classic LAN party. This guide will explain how multiplayer works, how to set up a private game, and how to fix common connection bugs. How Multiplayer Works in Anno 1800 anno 1800 lan multiplayer

| Error / Issue | Possible Cause | Common Fixes | | :--- | :--- | :--- | | | Ubisoft Connect can't properly detect your network settings, often due to router or firewall restrictions. | Restart the game and Ubisoft Connect. Forward the required ports (UDP 18000) in your router settings. | | Connection / LR05 Error | A mismatch in game data or a temporary server issue. | Check Ubisoft servers for outages. Verify the integrity of your game files (Ubi/Steam) and ensure all mods match. | | LR40 Error | Most common when Steam is used for invites. | Use Ubisoft Connect for invites only . Ensure no one is using a VPN/proxy. | | Multiplayer Grayed Out | Ubisoft Connect is set to Offline. | Change your Ubisoft Connect status to "Online". A full PC restart can also help. | | Lag / High Ping | Weak Wi-Fi signal or background downloads. | Use a wired Ethernet connection for a more stable signal. Limit other devices on the network from using heavy bandwidth (video streaming, large downloads). | While traditional offline LAN is unavailable, you can

🛠️ How to Set Up "Local" Multiplayer in Anno 1800 (2026 Edition) | Restart the game and Ubisoft Connect