The aim of this post is to be an information hub. A quick reference tool to help out in the Support section. It is not a comprehensive guide. Reading this post alone will require some knowledge of using both platform and router settings . For more detailed understanding and guides please use the Additional Resources provided. Connection Overview Objective: To obtain Open Nat OPEN NAT With an OPEN NAT type, you’re able to chat with other people, as well as join and host multiplayer games with people who have any NAT type on their network. MODERATE NAT With a MODERATE NAT type, you’re able to chat and play multiplayer games with some people; however, you might not be able to hear or play with others, and normally you won’t be chosen as the host of a match. STRICT NAT With a STRICT NAT type, you’re only able to chat and play multiplayer games with people who have an OPEN NAT type. You can’t be chosen as the host of a match. Port Configurations : uPnp, Port Forward, DMZ Step 1: Set up a Static IP for your platform (either through your routers DHCP or manually) Step 2: Enable uPnp on your router (default setting on most routers is enabled). Restart your router and platform. If you achieve Open Nat – job done. If not – continue. Step 3: Port Forwarding. At this point disable uPnp. Enter the applicable port forward numbers into your router – assigning them to your platforms Static IP. Press Apply. Restart your router and platform. If you achieve Open Nat – Job done. If not - continue. Step 4: DMZ. Disable port forwards to your platform. Go into your router and place the Static IP of your platform into the DMZ. Press Apply Restart your router and platform. Glossary and terms: Dynamic / Static IP In the vast majority of home internet connections your ISP assigns you a Dynamic IP address. As the name suggest, it changes every time the lease is renewed. The lease can be changed every time you restart your modem/router. This situation is no good if you wish to use port forwarding or the DMZ function of your router. A static IP does not change as it is designated to your platform/device. To clear any confusion - Static IPs, in terms of what we are talking about, are designated to specific devices within your own home network. The external IP (Wan IP) is still dynamic. uPnp Universal Plug and Play is an automatic port configuration of your router. In essence, your router talks to your platform / game to work out which ports need to be opened or triggered. It can work very well, although sometimes it does not pick up all the ports you need. By far the easiest method of port configuration. Port Forwarding Manual configuration of your router. You are telling your router which ports need to be opened for a specific IP address. DMZ The Demilitarized zone (DMZ) of your router opens up all ports to the IP address specified – except for those that have been port forwarded. Using the DMZ of your router should be considered a last resort, as it exposes the specified device to the internet. Notes: <>·If you use the DHCP reservation of your router make sure that the lease is set to “forever”. · uPnp is the easiest method, manual Port Forwarding requires you to get to know your router, using the DMZ of your router should be considered a last resort. · uPnp and Port Forwarding should not be used together – this can cause conflict. · Having two consoles operating on the same home network will cause competition for ports - common symptoms are being able to access multiplayer on one, while the other cannot connect. Make sure you give each console a separate Static IP. First method: Use uPnp. Second method: Use Port Forwarding for one console,,, place the other console into the DMZ. · Always remember to power cycle routers and platforms after changes are applied. Port Numbers required for platform and Ghosts (Port Forwarding) Xbox 360 TCP: 80 UDP : 88 TCP and UDP: 53, 1863, 3074, 3075 (Ghosts) Xbox One TCP: 80 UDP: 88, 500, 3544, 4500 TCP and UDP: 53, 3074, 3075 (Ghosts) PlayStation Network TCP: 80, 443, 465, 983, 10071-10080 UDP: 3478-3479, 3658, TCP and UDP: 5223, 10070, 3074, 3075 (Ghosts port) PS4 TCP: 80, 443, 1935, 3480 UDP: TCP and UDP: 3478-3479, 3074, 3075 (Ghosts port) Steam TCP: 27031-27050 UDP: 3478, 4379-4380, 27000-27013 TCP and UDP: 27014-27030 Steam Ghosts TCP: 28910 UDP: 5165, 27900-27901 TCP and UDP: 1116-1150 Additional Resources: Free Help Forwarding Ports - PortForward.com If you are in need of a walkthrough concerning assigning PF to your specific router – click this link. Also contains port lists for every game under the sun. How to Setup a Static IP Address in XP, Vista, Windows 7, and Game Consoles - PortForward.com Great link to creating a static IP. Just select your platform and follow. Also provides understanding of Dynamic vs Static IP. (For Xbox One and PS4 users – the principles are the same as old-gen consoles, just different interfaces) Normal Person's Guide to an Open NAT ver. 2.0 [PS3] A great user friendly guide to achieving Open Nat for the PS3. Written a couple of years ago for MW3 – but the same principles apply. Normal Person's Guide to an Open NAT ver. 2.0 [XBOX] A great user friendly guide to achieving Open Nat for the Xbox 360. Written a couple of years ago for MW3 – but the same principles apply. The Elagaphant - Charlie INTEL Blog: Call of Duty Ghosts – Black Ops 2 – Modern Warfare 3 A great guide to understanding online connection. Does cover more advanced subjects such as MTU and DNS – but is noob friendly. Xbox One Multiplayer Help | Can’t Hear Friends on Xbox Live | Can’t Join Multiplayer Game with Xbox One - Xbox.com For Xbox One users – a troubleshooting guide. Xbox Live NAT Error Solution | Can’t Host or Join Multiplayer Game - Xbox.com For Xbox 360 users – a troubleshooting guide. Source COD Fourms.