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BufferFix project artwork

Modrinth · Minecraft mod

BufferFix

Fixes the "disconnect.overflow" error that occurs on some 1.4.7 servers.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which BufferFix release matches 1.4.7 Forge?

Updated 2 years ago
Best match for your filters 1.0
Game version 1.4.7
Loader Forge

BufferFix 1.0 targets 1.4.7 with Forge. Do not install it on the client. It must be installed on the dedicated server. No extra mods listed for this file.

Where it goes

Is BufferFix required on the client, server, or both?

Do not install it on the client. It must be installed on the dedicated server.

Client Not supported
Dedicated server Required
Loader for this release Forge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

This file is marked server-only.

What else does BufferFix 1.0 need?

1.0 on 1.4.7 Forge. Every mod below is checked against that same setup.

No extra mods listed for this file

This file does not list any required mods. Do not add a library just because a different file uses it.

This file does not list any required or optional mods.

Before you install it

Add BufferFix without breaking your instance.

Built for BufferFix 1.0 on 1.4.7 Forge. Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use 1.0. It targets 1.4.7 with Forge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    This file does not list any required mods. Do not add a library just because a different file uses it.

  3. 03

    Put it on the correct side

    Do not install it on the client. It must be installed on the dedicated server.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside 1.0. It opens that exact file at the source.

About this project

What does BufferFix add?

This server-side coremod fixes the disconnect.overflow error that players might get on some 1.4.7 servers, most often caused by having a large amount of machines in one location.

The cause of this problem is a check in Minecraft's TcpConnection.java#processReadPackets() method where the server checks the size of the send queue for the user. If the queue is larger than 2MB, the server will drop the player's connection. If a player joins a server in an area with a large number of machines, the send queue can easily exceed the 2MB limit, causing them to be disconnected.

This mod simply patches the server to increase the maximum queue size to 20MB.

Project description from Modrinth.

Pick your setup

BufferFix by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

1 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

BufferFix versions and loaders

1 of 1 releases match

Looking for an older file? The official Modrinth project page is in Resources.