If playing over a virtual LAN (like Hamachi or Radmin), ensure all players are on the same virtual subnet. Option 2: The "LAN via Virtual Network" Guide
Corrupted temporary files in your Ubisoft launcher can cause matchmaking and invite systems to break entirely.
: Don't use the in-game "Invite Friend" button. Instead, shift-tab to Ubisoft Connect , right-click your friend in the "Social" tab, and invite them directly from there. anno 1800 lan multiplayer fixed
Modern consumer routers sometimes isolate local clients through security algorithms designed to mitigate network threats. Adjust Router Administration Panel
Check that your Windows Firewall isn't blocking Anno 1800 or Ubisoft Connect. Switching to a "Public" to "Private" network profile often helps. VPN Check: If playing over a virtual LAN (like Hamachi
While you can't play in true "offline LAN mode," you can absolutely play with someone on the same home network. The key is understanding that the game still routes through Ubisoft's servers—but for players on the same router, this often works seamlessly with the right configuration.
This is the gold standard for LAN parties. It works even without an internet connection, supports up to 8 players, and has lower RAM overhead than the official method. No desyncs reported in 2026 tests. Instead, shift-tab to Ubisoft Connect , right-click your
Anno 1800 delivers one of the most rewarding city-building and strategy experiences in modern gaming. However, gathering friends for a local area network (LAN) session or simulated LAN via Virtual Private Networks (VPNs) can sometimes lead to frustrating connectivity drops, desyncs, and infinite loading screens. Because the game relies heavily on Ubisoft Connect servers even during local simulation, achieving a flawless multiplayer connection requires specific network configurations.
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80, 443, 13000, 13005, 13200, 14000, 14001, 14008, 14020, 14021, 14022, 14023, 14024 Anno 1800 Game Client: UDP: 18000