Enable UPnP On Your NAT Router
Have a look through the settings on your router for the UPnP settings; it will be a tick box, just make sure it is ticked and restart all your equipment. UPnP enabled devices like your xbox 360 and PS3 can talk to the router using UPnP and open NAT ports up automatically. Failing that try…
How To Open NAT Ports Manually
If you are using this method make sure your xbox/PS3 has been assigned a static IP address from the router. Here is an example of where do this on a Netgear router.
When you open NAT ports you need to specify an IP address to forward them to. If later on the xbox/Ps3 IP address changes it will stop working. Once you have assigned static IP address you can now open the relevent ports to your device, this is done in the “port forwarding” section of your NAT router.
Xbox 360 Live Ports for Open NAT
Taken from Microsoft’s official Xbox Live support page
Xbox LIVE requires the following ports open:
- Port 88 (UDP)
- Port 3074 (UDP and TCP)
- Port 53 (UDP and TCP)
- Port 80 (TCP)
How To Open NAT for Playstation Network
Taken from the PS3 playstation network page
- TCP 80
- TCP 443
- TCP 5223
- UDP 3478
- UDP 3479
Open All NAT Ports Using the DMZ Feature
If all else fails you can open all NAT ports by turning on the DMZ option of the NAT router and type in the IP address of your xbox 360/PS3. Note that this still requires a static IP address. This is actually easier than opening the NAT ports manually but I would only recommend it as a last resort. Opening all NAT ports effectively disables the firewall on your router. Of course your xbox 360 or PS3 will only respond on the ports it uses for the relevent services but it is still safer to have the other ports closed if possible.