CITGTA, MTA & CIT FixCIT Tools

MTA:SA error code

MTA:SA error CD02

There is no active connection for MTA to work with.

How to fix it

  1. Try the connection again

    Close MTA, open it again and connect once more. A single failed attempt can come from a restart on the server or a short break in your own connection.

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

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 CD02 as No active connection.

Where this comes from

Read on 5 September 2026 and written in our own words here.