Need help with users connecting

A friend of mine and I are trying to get a MaNGOS server up and we are having some issues. He is able to connect to the server seeing as it's on his pc, I on the other hand cannont. At first I was getting stuck at the Logging Into Game Server screen and it would loop back to the realm list. We tried to change a few things and it ended up making things worse. From what we can tell, everything has been set according to the guides on this forum. Now I get the "Unable to Connect, Please Try Again Later" error yet he is still able to connect without any problems. If anyone could please give us a hand, it would be greatly appriciated.

This sounds like a port issue i'd ask him if he has every port forwarded and to make shore he has the realmd.cfg set up correctly.