If the server is running a different stable or preview version of tModLoader than your client, connection handshakes will fail instantly after reloading. Right-click in your Steam Library. Select Properties , then click the Betas tab.
If you are not on the 64-bit branch, you are living dangerously. Here is how to switch:
: Windows Firewall can sometimes block the final handshake after mods reload. Temporarily disable your Firewall or Anti-virus reload complete joining tmodloader
The most common reason for getting stuck at the joining phase is running out of system memory. Modded Terraria is incredibly resource-intensive. If you are running large content mods like Calamity , Thorium , and Fargo's Soul Mod simultaneously, the standard 32-bit architecture cannot handle the memory load. Check Your tModLoader Architecture
The message is the gateway between your mod list and your gameplay. When it works, you barely notice it. When it breaks, it is deeply frustrating. But in 95% of cases, it is not a bug in tModLoader itself—it is a memory limit, a mod conflict, or a corrupted save. If the server is running a different stable
If all else fails, nuke it from orbit.
: A clearer menu now informs players about pending mod downloads or configuration changes before they begin the reload process. Reduced Overrides If you are not on the 64-bit branch,
Type %userprofile%\Documents\My Games\Terraria\tModLoader\ and press Enter. Locate the folder named . Inside, look for a subfolder named Cache or downloadedMods . Delete everything inside this folder. The "Manual Install" Workaround