Makes sense why I was so confused.

I have a custom gateway so originally I had to plug the S3 into my laptop, configure the LAN to look at 192.168.1.X (anything besides 99 as AntMiner is on that)
Log into the GUI via 192.168.1.99
Turn the WAN to DHCP so it automatically found the correct IP when I plugged it directly into the switch
Found the IP it was using and was able to log into the GUI and change miner settings
Worked like a charm, really really simple and easy if you know what you are doing hah

I even found a use for some of my old PSUs that were powering some MrTeal Chilis (Sadly put into retirement/sold)