Many modern routers and ISPs use IPv6, which Anno 1800 often struggles to negotiate during local multiplayer sessions. Disabling IPv6 is the most widely reported fix for direct connection issues between friends.
If you’ve been struggling to connect to friends in the same room, here is the exact checklist that worked for us:
Multiple computers on the same local network playing together via online multiplayer (using Ubisoft’s servers) but with very low latency.
Remaining players must click and enter those credentials.
Ensure all players joining your local session execute this step simultaneously. 4. Create Windows Defender Firewall Exceptions
This article is a complete guide to playing Anno 1800 over a local network. It starts with the big picture of multiplayer and LAN compatibility before moving to a step-by-step troubleshooting walkthrough. By the end, you will have all the knowledge you need to host and join stable online sessions with friends, especially if you are playing from the same physical location.
Click at the top right (requires administrator access). Locate Anno 1800 and Ubisoft Connect in the list.
80, 443, 13000, 13005, 13200, 14000, 14001, 14008, 14020, 14021, 14022, 14023, 14024 Anno 1800 UDP: 18000 to 18010
Reply below. I’ll update this post if a future patch breaks it again.
: Ensure Universal Plug and Play (UPnP) is enabled in your router settings. This allows the game to automatically request the necessary ports, which significantly reduces desyncs.
Open the Windows Start menu, type , and select Windows Defender Firewall .
Many modern routers and ISPs use IPv6, which Anno 1800 often struggles to negotiate during local multiplayer sessions. Disabling IPv6 is the most widely reported fix for direct connection issues between friends.
If you’ve been struggling to connect to friends in the same room, here is the exact checklist that worked for us:
Multiple computers on the same local network playing together via online multiplayer (using Ubisoft’s servers) but with very low latency. anno 1800 lan multiplayer fixed
Remaining players must click and enter those credentials.
Ensure all players joining your local session execute this step simultaneously. 4. Create Windows Defender Firewall Exceptions Many modern routers and ISPs use IPv6, which
This article is a complete guide to playing Anno 1800 over a local network. It starts with the big picture of multiplayer and LAN compatibility before moving to a step-by-step troubleshooting walkthrough. By the end, you will have all the knowledge you need to host and join stable online sessions with friends, especially if you are playing from the same physical location.
Click at the top right (requires administrator access). Locate Anno 1800 and Ubisoft Connect in the list. Remaining players must click and enter those credentials
80, 443, 13000, 13005, 13200, 14000, 14001, 14008, 14020, 14021, 14022, 14023, 14024 Anno 1800 UDP: 18000 to 18010
Reply below. I’ll update this post if a future patch breaks it again.
: Ensure Universal Plug and Play (UPnP) is enabled in your router settings. This allows the game to automatically request the necessary ports, which significantly reduces desyncs.
Open the Windows Start menu, type , and select Windows Defender Firewall .