Step 17: Reboot your PS4 and your NAT type problem should be solved 
 
 
 
PlayStation 3 
In order to solve your PS3 problem please follow the below steps: 
  Step 1: On your PS3: Go to network settings then Internet connection settings a 
  Step 2: Choose the type of connection you are using (wired/wireless) then choose Manual IP and 
enter the following IP addresses: 
  IP Address: 192.168.0.50 
  Subnet Mask: 255.255.255.0   
  Default Router: 192.168.0.1 
  Primary DNS: 193.227.177.130 
  Secondary DNS: 194.126.16.38 
 
  Step 3: Disable the UPnP and leave the rest of the setting as they are 
  Step 4: Connect a device to your D-Link router (using cable / WIFI) 
  Step 5: In your browser enter the address 192.168.0.1