CSF Not Allowing Incoming UDP Request?

[necrohhh]

I have a CentOS 5.8 server, with a game server on it. I have web hosting on a different server, and I'm trying to query the game server using PHP. It's sending a UDP request to the server, but it is being blocked. I turn off CSF and the request is successfully made. I had tried the following,

- Allow All Ports, Incoming and Outgoing TCP And UDP
- Put the incoming request's IP into my csf.allow file
- Port Scanning is turned off.

Still no avail. I'd appreciate some help with this issue. =)

- Jeremy

[chatwizrd]

It should tell you what port is being blocked in /var/log/messages