Cannot connect from external network

As title says, I cannot connect to my server using my WAN IP. When I set LAN IP server and client side, I can connect fine. Obvious answer is, network misconfiguration, but I checked my settings multiple times and cannot find what went wrong. I have linked to an archive containing clean logs (one start only) and screenshots of all my settings.

Link

Some background information:
Server is running in VBox under OpenSUSE 12.3 host. ALL firewalls are disabled, except NAT. I cannot DMZ the server because I have another machine that absolutely must be in DMZ to function.

I am using Extornia's repack with Justin Bieber's updated Data folder and binaries. To fully start the server, I start "cabal", then again start "ChatNode_01" and "AgentShop_01", followed by a restart of "WorldSvr_01_01. I do this because ChatNode and AgentShop crash as soon as they are started, and no servers show up unless I restart WorldSvr. After these steps, I can log in, create a character, and play using LAN IP.

Using TG EP8 Client with DARKSTEALMAN patch.

Any insight much appreciated.

try resetting your config "service cabal config". and use wan ip "on what ip will the players connect". also replace internal.txt of your game client to wan IP for breeklee and language.enc for husky.

After long hours of troubleshooting, I've concluded that it is a problem in the server itself.
If I set my WAN IP, everyone can connect besides me. If I set LAN IP, then just me.
I have two other game servers running under identical config. Only Cabal has issues.
Solved by proxying into my own server. Ridiculous, yes, but nothing I can do about it.