Game Servers

Fix Terraria Server "Can't Connect" (Vanilla & tModLoader)

can't connectversion mismatchtModLoader mods differ
5 min read Updated 12 June 2026 ESAGAMES Team

Terraria connection trouble is usually the port, or — on tModLoader — a version/mod mismatch. Here's the fix for both.

Open the port

Terraria uses a single TCP port by default:

7777/tcp   game (default)

Join the right way

In Terraria → Multiplayer → Join via IP, enter the server IP and port 7777. Make sure your game version exactly matches the server's — a vanilla client can't join a tModLoader server and vice-versa.

tModLoader: match versions and mods

For a modded (tModLoader) server, the client must run the same tModLoader version and have the server's mods enabled. Subscribe to the server's mod list and enable them before joining.

Vanilla is not tModLoader

A common mistake: trying to join a tModLoader server from vanilla Terraria (or the wrong tModLoader branch). Launch the matching client.

Open 7777/tcp, Join via IP, and for tModLoader match the loader version and enable the server's mods.

Terraria hosting, vanilla or modded

Our Terraria hosting supports vanilla and tModLoader with the port open, on a protected network.

Terraria hosting
FAQ

Frequently asked questions

What port does a Terraria server use?

TCP 7777 by default. It must be open and forwarded for players outside your network to connect.

Why can't I join my tModLoader server from Terraria?

Vanilla Terraria and tModLoader are different clients. You must launch tModLoader (matching the server's version) and enable the same mods to join a modded server.

How do I join a Terraria server by IP?

Multiplayer → Join via IP, then enter the server IP and port 7777. Make sure your client version matches the server.

Knowledge base

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