NAT (Network Address Translation) is a networking concept that allows your router to share a single IP (Internet Protocol) address across multiple devices on your network. Instead of your ISP (Internet Service Provider) assigning an IP address to every device that connects to the Internet, NAT allows your ISP to assign a single IP address to your router. The router then manages a set of IP addresses for all devices on your home network.
You may want to try changing your NAT setting if you are having trouble joining matches, are crashing upon matchmaking, or experiencing other networking issues.
There are three main NAT types depending on your platform: Open, Moderate, and Strict on Microsoft or PC, and Type 1, Type 2, and Type 3 on Sony. Moderate/Type 2 and Strict/Type 3 NAT types limit the connections your gaming console or PC can make to other gaming consoles or PCs.
For example, Moderate/Type 2 NATs can only connect with gaming consoles or PCs using Moderate/Type 2 or Open/Type 1 NAT, and Strict/Type 3 NATs can only connect with gaming consoles or PCs using Open/Type 1 NAT. Ultimately, an Open/Type 1 NAT will provide the best connection quality.
Below you'll find troubleshooting steps for changing NAT types on several platforms: