A microscopic discrepancy in system time clocks can break peer-to-peer data streams. Right-click the clock in your Windows taskbar. Select .
Open Windows File Explorer and navigate to the default cache directory: C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\cache . Select all files inside the folder and delete them.
If you are in the same building but still having trouble, or if you want to play without a reliable internet connection, using a Virtual Private Network (VPN) or LAN emulator is the best approach. Use Hamachi, Radmin VPN, or ZeroTier. Method:
Are all players using the (Steam vs. Ubisoft Store)? Share public link anno 1800 lan multiplayer fixed
While Ubisoft’s patch is welcome, many hardcore LAN enthusiasts have moved beyond it. Two major community solutions now exist that “truly” fix LAN multiplayer by bypassing Ubisoft Connect entirely.
TCP: 80, 443, 13000, 13005, 13200, 14000, 14001, 14008, 14020, 14021, 14022, 14023 and 14024. Anno 1800: UDP: 18000 to 18010. Fix 5: Flush DNS and Reset Network Stack
is generally recommended over Hamachi in 2026 for its higher speeds and lower latency. How it works: Download and install Radmin VPN. Create a network and have your friends join it. All players must show up as "Active" in the Radmin window. Launch Anno 1800 . A microscopic discrepancy in system time clocks can
Anno 1800 is a masterpiece of city-building and economic management, and it is arguably best enjoyed with friends. While Ubisoft designed the game with a heavy reliance on online connectivity via Ubisoft Connect for multiplayer, many players still crave the classic experience of a LAN (Local Area Network) session—especially when dealing with unpredictable internet speeds or simply wanting to play offline.
Open the Start menu, search for , and open it.
(like LR40 or CF3F) that I can help you troubleshoot further? Ubisoft Server Status & Connection Issues | Ubisoft Help Open Windows File Explorer and navigate to the
Access your router's administrative interface (usually by typing its IP address, like 192.168.1.1 , into a web browser). Log in, navigate to the port forwarding section, and create entries for each of the rules above, directing them to your PC's static IP address. For those with more complex network setups, creating specific outbound NAT rules for the LAN range may also be a possible solution, though less common.
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
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