If a mod is missing or outdated, tModLoader attempts to download it directly from the server.
If the server is running a massive modpack (like Calamity, Thorium, and several quality-of-life mods combined), your computer may run out of memory during the final "Joining" phase. This results in a silent crash or an infinite loading loop. Step-by-Step Fixes for Joining Errors reload complete joining tmodloader
Once the files are present, the game must "Reload" its internal database to register the items, NPCs, and logic of those specific mods. Common Issues After Reloading If a mod is missing or outdated, tModLoader
If you are stuck after the reload, follow these steps to clear the bottleneck: Clear Your "Mods" Folder Step-by-Step Fixes for Joining Errors Once the files
Before starting the server, click "Update All" in the mod menu to ensure you aren't hosting an obsolete version.