Technicolor TC8717T Not Opening Port? - Time Warner Internet

This question is about "Technicolor TC8717T Not Opening Port?", with Time Warner Cable internet and apps. I'm trying to host a game server on my home network. I have done this before on this router with no problems but now the port isn't open. My Firewall on the server device is off and the port is forwarded. I cannot think of anything else i'm missing.

More Info

Server: Apple Xserve 2,1

OS: Mac OS X Mojave

Technicolor TC8717T Not Opening Port??