If you are playing in the same building and experiencing lag or "Failed to connect to remote IP" (LR39) errors, try these fixes:
Open the Windows Control Panel and go to > Windows Defender Firewall .
Have all players download and install Radmin VPN.
All players launch Anno 1800 through Ubisoft Connect.
Use LAN for long co-op sessions (e.g., building a shared empire for 8+ hours) or competitive multiplayer where milliseconds matter. Use standard online for quick sessions or when playing with friends across different ISPs. anno 1800 lan multiplayer link
in the empty player slots to invite your friends from your Ubisoft Connect friend list. Game Mode: Competitive: Each player/team controls their own empire. To play on the same team, invite friends to the same faction slot (click the "+" under your name).
All players must launch Ubisoft Connect and set their status to "Online."
Click on the empty player slots in your lobby to open your Ubisoft Connect friends list and send direct game invites.
Do you need help optimizing specific for your local setup? Share public link If you are playing in the same building
for deeper insights into how factions and co-op mechanics were designed. Modding FAQ
A: Yes, but it requires additional setup using compatibility layers like Proton (on Steam Deck/Steam Play) or Lutris/Wine. Some users have reported success by using specific versions of Proton (like 6.3-8) or waiting for the NAT type to become "Moderate".
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Officially, in the main menu that allows you to play without an internet connection. Use LAN for long co-op sessions (e
Here is a comprehensive guide to establishing an Anno 1800 LAN multiplayer link, troubleshooting connectivity issues, and optimizing your local network sessions. Understanding Anno 1800's Multiplayer Architecture
Click the button under the "Synchronize your clock" section. Ensure all players do this before starting the match. Verify Game Files
: Open Anno 1800 and ensure you see a green "Connected to Matchmaking" icon on the right side of the screen.