Can't Connect to a Friend's Server

[Dread]

Alright, so it's actually flipped, my friend can't connect to my server. Just trying to host a little zombie bot server where we can both mess around for awhile. The server shows up in the list, but when he double clicks, it says "Requesting Client Info" and never joins, just leaves that little message up.

I'll assume its something with firewalls. Can someone explain what the two of us have to do to allow him to connect?

Thanks in advance

[FliesLikeABrick]

Take a look at the stickies in the Server Help forum, and read through as many threads in there as you can.  you'll find your answer about how to take care of firewall problems.

[Dread]

I'm assuming you meant the following post:

http://forums.soldat.pl/index.php?topic=95.0

So I gave him my ip, and we used the basic 23073 port, but still having the problem