Portalfarm Despawn Fix
Prevents mobs from despawning in portal farms on multiplayer servers by limiting the despawn range.
About this Mod
Portalfarm Despawn Fix
A micro-mod for Fabric that fixes a common issue where mobs transported through nether portals on multiplayer servers would immediately despawn when there are players in the destination dimension. This mod prevents mobs from despawning in portal farms by setting an upper bound to the despawning check.
Vanilla behaviour:
Mobs that are x blocks away from a player despawn immediately
Adjusted behaviour:
Mobs that are x blocks away, and less than x * 1.5 blocks away despawn immediately
Notes:
- To preserve compatibility, the mod will occasionally do a distance check twice (will not matter for 99.9% of players)
- The mod does nothing on singleplayer, or when there are no other players online on your server
- While the mods name contains portal, this mod does not alter portal mechanics in any way. It is named this because it fixes a mechanic most commonly seen when using portal based farms
Available Versions
How to Install Portalfarm Despawn Fix on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Portalfarm Despawn Fix". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Portalfarm Despawn Fix server crashes on startup – what to do?
Most common cause: wrong fabric 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 (1.21.11). You can switch loaders with one click in the panel.
Is Portalfarm Despawn Fix compatible with fabric?
Portalfarm Despawn Fix officially supports fabric for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Portalfarm Despawn Fix – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Portalfarm Despawn Fix 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 Portalfarm Despawn Fix with just one click on your server.