I have reset the main node to factory settings, made sure the DHCP is enabled (network and phone system chaos ensued as we already have a router doing this) and made sure it has an IP address ending in one (192.168.0.1). I cannot access network devices from the main node network to the remote node network. So I can only access the main node admin page from the remote, I cannot access any other network devices.

I had previously setup the port forwarding for the original address, I needed to do that to get the Node Usability Testing to pass and create the S2S network, so I ensured I changed those too.