NAT type is a security feature on PlayStation 4 that helps protect your device from being accessed by unauthorized individuals. NAT type is used to identify the country of origin of a network traffic. If you are not sure whether your PlayStation 4 is using NAT type, you can check by using the following steps:

  1. Open the PlayStation 4 system software and sign in to your account.
  2. In the System Settings, select Network and Security.
  3. Under Network Type, selectNAT Type. If your PlayStation 4 is using NAT type, it will be listed as such in the results. If not, you may need to change it to ensure your device remains safe from unauthorized access.