
BufferFix
Fixes the "disconnect.overflow" error that occurs on some 1.4.7 servers.
About this Mod
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.
Available Versions
How to Install BufferFix on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.4.7).
Install Mod
Open the mod browser in the dashboard and search for "BufferFix". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.4.7
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
BufferFix server crashes on startup – what to do?
Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.4.7). You can switch loaders with one click in the panel.
Is BufferFix compatible with forge?
BufferFix officially supports forge for Minecraft 1.4.7. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with BufferFix – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if BufferFix consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install BufferFix with just one click on your server.