MTA:SA error code

MTA:SA error CD40

The server is older than your client.

How to fix it

1. Ask the server, not MTA

   If the message names a server rule, a kick, a ban or a reason, that decision belongs to that server. Take the exact message to the server's own forum or Discord. MTA cannot change another server's decision. On CIT, ask in game with J > Support or /sup, or post the exact message on the General Support / Questions board (cit.gg/index.php?board=15.0).

Still not fixed? Copy the whole message, not only the code, and check your log in the Fix tool. It is read on your own computer.

About this code

Nothing on your side is broken. The server has to update before you can join with a newer client.

A CD code appears when a connection to a server fails, is refused, or ends. Most of them carry a second line with the server's own reason. MTA's own documentation gives CD40 as Server build older.

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