It was supposed to be a relaxing Saturday. A co-op campaign. Two industrial tycoons building a new world empire together. Instead, for three hours, they had been fighting the notoriously fragile LAN multiplayer handshake. Every time one of them loaded a new trade route, the synchronization would break. Desync Error. The dreaded red text was becoming their screensaver.

Good luck, Annoholics! Let me know in the comments if this worked for you. 👇

Anno 1800’s LAN multiplayer can be unreliable or broken for some players — this guide walks you through causes, fixes, and preventative tips so you can get stable local multiplayer sessions with friends. Use the checklist and troubleshooting steps below in order; try the quick fixes first, then follow deeper troubleshooting if problems persist.

Anno 1800 uses specific ports to maintain a stable heartbeat between players. Forward these on your router: : 18000, 18017 2. The "Invite Only" Workaround If the "Public" lobby isn't working: Start a game in Shift + F2 to open the Ubisoft Overlay. friends from your list. 3. Clear Ubisoft Cache