Hello,   
The problem: I can only create game servers using my master servers local ip address.   
My Master's details 
Operating system: Windows 
Primary ip: 192.168.2.xx 
Firewall ip: 47.55.87.xxx 
Private Network ip: 192.168.2.xx   
In SERVER IP's, I have two address: 
127.0.0.1 - localhost - nothing checked 
192.168.2.xx - 47.55.87.xxx - Public, Game Hosting, Voice Hosting checked.   
Obviously I want my server to create public game servers but when I create a new game service with the Master, I am only given the ip address option of [Automatic] and 192.168.2.xx   
Any ideas?