Hi, I have a program called PLEX which allows my computer to act as a server for my video content. I have installed the app and all is working fine within my network (at home), however the Remote Access is not working and that is one of the key features of this app. A while back I had a computer guy do a port forwarding (don't really know what this means), and he said that things should work fine from then on. However, that is not the case and I no longer have access to that guy so I need some help. My router is a Nighthawk X4 R7500 v2. Can some help please. Thanks.