What it does is turns off "online-mode" for LAN servers, and stops people connecting from getting the "The authentication servers are down for maintanince" error. Unfortunatly, LAN worlds dont seem to show up to the person connecting, so you'll have to use your IP as of yet.
You then have to direct-connect to the person, using thier IP and port, which are shown when a game is opened.
NOTICE - ONLY THE HOST NEEDS THE MOD
EXAMPLE: Vanilla left, Modded right

Quick facts
- Edition: Minecraft Java
- File type: .jar
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as lan-deauth-1.0.0.jar — drop this file into the mods folder
- Download size: 20 KB
- Download link checked 23 Sept 2026 — working
These come from our own check of the pack file, not from the source page.