MTA:SA fix

Fatal error or CRC mismatch when joining a server

A numbered Fatal error means the game and the server disagreed while you joined. Update MTA first. Some of these can only be fixed by the server's owner.

Steps

Try one step, then check whether the problem is still there. Follow any "only if" line before changing a setting.

1. Install the latest MTA

   MTA's page for a client fatal error has one fix: install the latest release, then try again.

2. Fatal Error 3 is the server's setting

   Only if the number shown is 3.

   Fatal error 3 means "server downloads disabled". The MTA FAQ says the server does not have HTTP downloading turned on, so only its owner can fix it.

3. The server may be out of date

   For a server fatal error, MTA's page says to ask the server owner to update the MTA server, then connect again.

4. CRC mismatch in the chatbox

   Only if the chatbox shows CRC mismatch.

   The MTA FAQ says this is a server problem: the server's files changed without a restart, or its download server is out of step. Tell the owner.

5. Try another server to compare

   Join a different server. If only one server gives the error, tell that server's owner. If every server gives it, install the latest MTA again from the official site.

Other problems like this

• CD20: server resource download failed
• CC23 / CD08: connection timed out
• Disconnected by an unknown protocol error
• An in game browser page cannot load
• Server browser is empty or stuck on Loading
• Lag, high ping or packet loss in MTA

All fix guides · Every MTA:SA error code · Crash codes and offsets