...as far as the error code when going into games.
Basically this is how you do it...
1. On your PS4, go to Network Settings, and then "View Connection Status."
From there you can get the IP Address of your PS4 and the MAC address (Lan Cable). Make sure you ARE HARD WIRED.
2. On your Router, get the website on the back of your router (or google it) and go to your "Router/Network Setting Website."
3. Now since EACH Router's Website is different, you must FIND the DMZ settings area. Sometimes under "applications and gaming" or "port forwarding."
Under DMZ (and its all different) enter the PS4's MAC Address into the DMZ enabling section. You can also use the current IP address your PS4 is currently in too, but when you restart your router, your IP address can and will change. (this is why people set up STATIC IP addresses for their PS4).
....Make sure BOTH players have DMZ enabled correctly, and then give it a shot. Also maybe restart the PS4 and/or Router and Modem once you make these changes to your router settings so they take effect.
Text me if you have any questions.
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