Anno 1800 Lan Multiplayer Fixed — [upd]

For 80% of users, yes. For the remaining 20% (strict corporate firewalls or misconfigured VLANs), it remains problematic.

The player with the weakest PC hardware dictates the simulation speed. If their system drops frames or lags during massive late-game industrializations, it will cause an LR40 desync. Lowering graphical settings on slower machines fixes this.

PC players can play across Steam, Epic, and Ubisoft Connect seamlessly. Anno Union for a specific error code like LR40? DevBlog: Multiplayer and Co-op - Anno Union A: No, speed controls are limited to singleplayer. Anno Union Crossplay in Anno 1800 | Ubisoft Help anno 1800 lan multiplayer fixed

Check that you have the green "connected to matchmaking" icon on the middle-right of the screen.

Long-running multiplayer games can suffer from "lag" when players switch sessions (e.g., moving from the Old World to the New World). For 80% of users, yes

Click . Click Change settings (requires administrator rights). Locate Anno 1800 and Ubisoft Connect in the list.

The game's cross-platform multiplayer system is designed to support up to 16 players across PC, PlayStation, and Xbox, handling invitations, lobby creation, and game synchronization through Ubisoft's online infrastructure. While PC players from Steam, Epic Games Store, and Ubisoft Connect can all play together without issue—since all multiplayer services run through Ubisoft Connect regardless of where you bought the game—this architecture means there's no native "direct connection" option that bypasses the internet entirely. If their system drops frames or lags during

To understand the fix, you must understand the wound. Unlike Anno 1404 (Dawn of Discovery), which had a direct IP-to-IP connection, Anno 1800 uses a hybrid system. Even when two computers sit three feet apart, the game historically forced traffic through the Ubisoft Connect relay servers.