Disconnected due to incorrect map info

When I try to join a game, it says 'Disconnected due to incorrect map info'. I try again and it says 'Failed to connect to host server'. It just happened then, please help me.
Windows XP service pack 3
4 gb ram
Intel i7 second gen

So you have windows Xp sp 3 yeah try this solution

First, go to Control Panel and open the Security Dialog


Click on 'Windows Firewall' under 'Manage security settings for:'
Click on the 'exceptions' tab


Click on the 'Add port' button


And when this window appear,


you will need to add 3 different ports, but each one twice (one for TCP and one for UDP). The name/port/protocols are as follows:

Name: Crossfire
Port: 13008
Protocol: TCP

Name: Xtrap1
Port: 10009
Protocol: TCP

Name: Xtrap2
Port: 16666
Protocol: TCP

Name: Crossfire
Port: 13008
Protocol: UDP

Name: Xtrap1
Port: 10009
Protocol: UDP

Name: Xtrap2
Port: 16666
Protocol: UDP

You can visit z8games too You will get more help from this site too

Thanks for your time, have a nice day!

[edit: i got this help from Z8games ]