Anno 1800 Lan Multiplayer Fixed Fix -

: Invites sent through Steam are frequently reported as broken. Instead, open Ubisoft Connect , add your friends there, and invite them directly through the Ubisoft overlay (Shift+F2) or by right-clicking their name in the Ubisoft "Friends and groups" list.

One player goes to Multiplayer and selects Host Custom Match .

A major patch (1.3) released in December 2025 addressed several critical issues that plagued multiplayer sessions: anno 1800 lan multiplayer fixed

If you want to play a simulated LAN setup over the internet with friends, third-party VPN tools can bridge the gap. Programs like Radmin VPN or ZeroTier create a secure virtual switch that mimics a physical local network. Radmin VPN Configuration

Windows Firewall or third-party antivirus software can block the game's communication ports, leading to the following symptoms: : Invites sent through Steam are frequently reported

| Protocol | Port Number(s) | Purpose | | :--- | :--- | :--- | | | 80, 443 | Core web traffic and secure connections for authentication | | TCP | 14000 - 14043 | Ubisoft Connect game communication | | TCP | 18000 | Primary game data | | UDP | 3074 | Xbox Live/peer-to-peer networking (used by many games) | | UDP | 18000 | Primary game data (listed as UDP by some sources) |

Ensure Anno 1800 and Ubisoft Connect are allowed through your Windows Firewall or any third-party antivirus software. A major patch (1

Ubisoft has actively patched several LAN-related connectivity problems:

Assigning static IP addresses to each computer on the local network ensures that port forwarding rules remain reliable and minimizes network discovery time. To do this, configure your router's DHCP reservation settings or manually set a unique IP address for each computer within the local subnet.