Fix Reliable Buffer Overflow
Fixes the Reliable Buffer Overflow caused by the conveyor belt chain subsystem when there are too many items
Description
Satisfactory 1.1 has changed how conveyor chain replication works, making this mod no longer relevant. If you're trying to fix the "Outgoing Reliable Buffer Overflow" crash you will have to try something else.
Old content (for historical purposes):
When too many items are added by mods (~1000 items total), in multiplayer, the game will kick the player with an "Outgoing Reliable Buffer Overflow" error. This happens because the conveyor chain subsystem will try to send all the item types to the client when connecting, causing too much data to be sent at once. This mod fixes this issue by splitting the item type list into smaller chunks.
Sending these chunks happens outside the regular client join flow, so it is possible that the items on conveyor belts take a bit longer to appear on belts for clients immediately after they join.
While this could have been built into SML, we hope to allow vanilla clients to join an SML server in the future. This fix would prevent that from happening, as installing it on only one side prevents items on conveyor belts from ever loading for the client.
How to Install Fix Reliable Buffer Overflow on Your Server
Order Satisfactory Server
Order a Satisfactory server with at least 4 GB RAM (6 GB recommended). For multiplayer: per 4 players.
Install Mod
Open the mod manager in the dashboard and search for "Fix Reliable Buffer Overflow". Installation dependencies are installed automatically.
Restart Server
Restart the server so the mod is loaded. Players need to have the mod installed locally as well.
Frequently Asked Questions
Fix Reliable Buffer Overflow not working after update – what to do?
After a Satisfactory update, mods need to be updated. Check ficsit.app whether Fix Reliable Buffer Overflow has been updated for the new game version. With Mado Hosting: open the mod manager and click "Update All". If the mod hasn't been updated yet, temporarily remove it so the server starts.
Fix Reliable Buffer Overflow causing crashes in multiplayer – solution
Most common cause: all players must have exactly the same mod version installed. Check server logs for "ModMismatch" or "Version Conflict". Ensure all players use Fix Reliable Buffer Overflow v1.0.0 and the same SML. With Mado Hosting, Satisfactory servers run with 6 GB RAM for stable multiplayer performance.
Is Fix Reliable Buffer Overflow compatible with other Satisfactory mods?
Fix Reliable Buffer Overflow uses the Satisfactory Mod Loader (SML). Generally, SML-based mods are cross-compatible, but mods modifying the same game systems can cause conflicts. Test new mod combinations on a backup save. The Mado dashboard automatically detects known conflicts and warns you.
Rent Fix Reliable Buffer Overflow Server
Play Fix Reliable Buffer Overflow on your own Satisfactory server with mod support.
Mod Information
- Author
- mircearoata
- Latest Version
- v1.0.0
- Created
- January 22, 2025
- Last Updated
- July 8, 2026
- Source Code
- GitHub →