To get an Open NAT type for Call of Duty: Black Ops 3 on PS5, you should forward the following ports in your router settings: TCP: 1935, 3478-3480 and UDP: 3074, 3478-3479. Ensuring these ports are open helps resolve connectivity issues, as BO3 uses standard PlayStation Network ports for matchmaking. Activision Support Activision Support +1 Recommended Port Forwarding Settings for BO3 on PS5 TCP: 1935, 3478, 3479, 3480 UDP: 3074, 3478, 3479 Activision Support Activision Support +1 Steps to Improve NAT Type Set a Static IP: Assign a static IP address to your PS5 in the console's network settings to ensure the port forwarding rules remain effective. Access Router: Log into your router's administration page via a web browser. Configure Port Forwarding: Locate the "Port Forwarding" or "Virtual Server" section and enter the TCP and UDP ports listed above, directing them to your PS5's IP address. Restart: Save the settings and restart your router. Facebook Facebook +1 If you continue to have issues, you may also need to open general PlayStation Network ports: TCP: 80, 443, 465, 993, 3478, 3479, 3480, 5223, 8080 and UDP: 3478, 3479. Facebook Facebook