Multiple Ps4's on one router port forwarding

[stryker]

I have from two to 5 Ps4's on my Nighthawk x8 and I am trying to play Black Ops 3, the playstation that connects first has an open nat type. All of the others end up with a strict nat type and its sucks trying to play. Does any one know a way to portforward to for multiple ip's? Or have any suggestions? Any help is much appreciated. Thanks

 

[System Error Message]

You cant port forward the same port to multiple IPs. You can try using different ports instead. It also depends on the UPNP implementation as well such as using a different out port instead,