Anno 1800 Lan Multiplayer Fixed Fix Jun 2026

: Many players find that disabling IPv6 on their network adapter resolves the "unable to connect" error, especially when playing across different Windows versions.

Even when all players are in the same physical location, Anno 1800 can generate several frustrating error codes and symptoms. Here is how to fix them.

This error is often a result of version mismatch or launcher issues, or a deeper connectivity bug. Make sure all players have the latest game updates and that Ubisoft Connect is fully patched. If the error persists, it is a known bug that has affected some players for years, sometimes without a clear workaround.

: Many players report that disabling IPv6 on their Ethernet or Wi-Fi adapter properties in Windows allows them to connect when other methods fail. anno 1800 lan multiplayer fixed

Open the Start menu, search for , and open it.

Many players have found that the Steam overlay can interfere with Ubisoft Connect's invite system. Disable the Steam overlay for Anno 1800 through Steam's properties menu. You may also want to close resource-intensive applications like Discord or web browsers that can consume bandwidth on the local network.

I can provide targeted troubleshooting steps for your exact local network layout. Share public link : Many players find that disabling IPv6 on

If you are experiencing connection errors (like the common LR40 desync or NAT issues), these targeted steps are known to resolve most conflicts: Disable IPv6

The most frequent cause of invisible LAN lobbies or failed connections is the Windows Defender Firewall blocking Anno 1800 or Ubisoft Connect traffic. Press the , type firewall.cpl , and hit Enter.

Corrupted temporary files in your Ubisoft launcher can cause matchmaking and invite systems to break entirely. This error is often a result of version

After pulling my hair out trying to host a local game for my friends without relying on Ubisoft’s sometimes-spotty servers, I finally found a stable solution. If you want to play Anno 1800 over LAN (or via Hamachi/ZeroTier) with rock-solid stability, follow this guide.

Ensure all players are friends on Ubisoft Connect (or on the platform you are using) before starting the session.