Remote connection not working

[macnteej]

I am trying to do a simple remote connection outside the network. Running a basic setup with an old 2012 MacBook Pro, 2TB external hard drive, and I am using my provided xfi gateway for internet connection via ethernet. I changed the port to try and see if that would work and used port forwarding through the xii setup but still cannot get a connection outside the home network. I am trying to set it up so I can easily play Jellyfin on clients such as fire sticks and Apple TVs.