disable upnp .I have two ps4 no upnp. And it works fine
This is pretty easy to solve. It will require a laptop (either MAC or PC) with a VPN connection. One PS4 will connect using standard WIFI connected to main router network. The second PS4 will connect wirelessly to the laptop that is using the VPN connection on the same network (essentially using it as a second router). This will assign it a completely different service provider IP address.
The key is to ensure the two PS4s are using two completely different IP addresses (not the IP address your router assigned equipment but an IP the service provider provides).
--Your welcome.
