Ok, I'm going to try to help you with what I know. I've only been able to host a server once, and I'm not really sure how I managed to do it because I was having the same problem you're having. At the moment, I'm also trying to host a server using
this tutorial. The server was showing up on the first try, but I'm getting the "cannot access server" error (it works fine with localhost).
First of all, you might wanna check if your IP adress has changed; if it's dynamic it tends to change every once in a while.
Then, I'm pretty sure that the server.ini should be like this:
FREELOGINIP=""
KEEPERIP="127.0.0.1"
MONITORIP="127.0.0.1"
Then, locator.ini is fine.
In AgentConfig.xml though, you should replace the localhost IP with your WAN IP. (not sure about that)
Also, try forwarding port 9000.
One last question: did you change the system.xml inside your client's system.mrs?