Masterserver not responding help

[jamz]

[SELECT ALL] Code:

2014-12-05 20:46:14 gameserver added: 104.228.76.189:28763 unarmed_server AC1202

This is what I can see in the master server log. It almost always means you haven't port forwarded correctly. The fact that you say, "All my ports are forwarded on my router and firewall..." would indicate that you're not completely sure about this process. Say what you have done.