LAN Finder Fix
You are hosting a Minecraft world for friends, and the LAN tab is empty. You check the firewall, restart the game, and even switch network cables. Yet, the world remains invisible to players on the same router. If your PC has a VPN, virtual machine adapters, Docker, or WSL bridges, you are likely hitting a long-standing Mojang bug. The LAN Finder Fix mod is a client-side solution that finally makes LAN discovery work on machines with multiple network interfaces.
Why LAN Discovery Fails on Multi-Interface Systems
Minecraft's LAN feature broadcasts a local game using UDP multicast. When your computer has more than one active network adapter, the game often sends this broadcast out the wrong interface. This is not a new issue. Mojang has confirmed the bug as MC-98598 ("LAN List does not populate reliably"), open since 2016 and affecting versions as old as 1.9. The problem persists across Windows, macOS, and Linux, especially on systems running VMware, VirtualBox, Hyper-V, or VPN clients.
The Root Cause: Network Interface Selection
Minecraft's code does not intelligently pick the correct network interface for LAN broadcasts. It defaults to the first one it finds, which is frequently a virtual adapter created by Docker or a VPN tunnel. The result is that your world is broadcast into a network void, while your friends on the physical Wi-Fi or Ethernet see nothing. The LAN Finder Fix mod intercepts this broadcast logic and forces the game to use the interface that actually connects to your local network.
How LAN Finder Fix Works
This is a pure client-side mod. It does not require any changes to the server or the host's firewall. When you start a single-player world and open it to LAN, the mod scans all available network interfaces. It filters out virtual adapters, loopback addresses, and tunnel endpoints. Then, it binds the multicast broadcast to the most suitable physical interface, ensuring that other players on the same subnet can see your world in their multiplayer list.
The mod is built specifically for Fabric, NeoForge, and Forge, covering a massive range of Minecraft versions. Whether you are playing on an older 1.14.4 world or the latest 26.x snapshot releases, you will find a compatible build. This broad compatibility means you do not need to downgrade your game or switch mod loaders just to fix this networking annoyance.
Installation Guide: How to Install LAN Finder Fix
Installing the mod is straightforward, but the steps vary slightly depending on your mod loader. Before you begin, ensure you have the correct loader installed for your Minecraft version. For example, if you are on 1.20.1, you need Fabric Loader or NeoForge for that specific version.
Step-by-Step for Fabric
- Download the Fabric Loader installer from the official Fabric website and run it for your Minecraft version.
- Launch the game once with the Fabric profile to generate the mods folder.
- Locate the LAN Finder Fix jar file for your exact Minecraft version (e.g., 1.21.11).
- Place the jar file into the
modsfolder inside your.minecraftdirectory. - Restart the game. No configuration is needed; the mod works automatically.
Step-by-Step for Forge and NeoForge
- Install the appropriate Forge or NeoForge version for your Minecraft client.
- Run the game once to create the
modsfolder. - Drop the LAN Finder Fix jar into the folder.
- Ensure you do not have conflicting networking mods installed.
- Restart and test by hosting a LAN world.
For those who prefer a more streamlined approach, the foxygame.net launcher offers a one-click install for LAN Finder Fix, automatically matching the correct version and loader for your game profile. Its add-on catalog lets you browse and install the mod without manually hunting for jars, and the launcher handles future updates seamlessly, so you always have the latest fixes for new Minecraft releases.
Supported Versions and Loaders
The mod supports Minecraft 1.14.4 through 1.21.11, as well as the newer 26.x releases. This is a wide net, covering over a decade of gameplay. You can use it with Fabric, NeoForge, and Forge. The development team actively maintains builds for each loader, so you are not locked into a single ecosystem. If you play modpacks, this mod is lightweight and has no dependencies, making it easy to add to existing setups.
Testing Your Setup
After installation, test the fix by hosting a world and checking the multiplayer screen from another device on the same network. If the world appears, the mod is working. If you still see nothing, verify that your firewall allows Java or Minecraft through for private networks. Also, check that your router does not have "AP isolation" or "Client Isolation" enabled, as this blocks all LAN communication, not just Minecraft.
Why This Mod is Essential for Power Users
If you run a virtual machine for testing, use a corporate VPN, or have Docker Desktop installed, you have likely given up on LAN play. The LAN Finder Fix mod restores this feature without requiring you to disable your virtual adapters. It is a targeted workaround for a bug that Mojang has not fixed in over eight years. While the official bug report remains open, this community solution is the only reliable way to get LAN discovery working on modern, multi-interface PCs.
To get started, simply search for "download LAN Finder Fix" on your preferred mod repository. Make sure to select the file that matches your loader and Minecraft version. The LAN Finder Fix for Minecraft is a small download, usually under 100 KB, and has zero impact on game performance. Once installed, you can finally host those couch co-op sessions or office LAN parties without the dreaded "No games found" message.
Conclusion
Mojang's networking bug is frustrating, but you no longer have to wait for an upstream fix. LAN Finder Fix provides a simple, reliable solution for players with complex network setups. It is compatible with all major mod loaders and a huge range of game versions. Whether you are a developer with a dozen virtual machines or a gamer using a VPN, this mod ensures your LAN worlds are always visible. Download it, install it, and get back to playing with friends on your local network.