1. Start the PS4 console.
2. Open the [Settings] menu.
3. Select [Network].
4. Select [Test Internet Connection].
If this test shows your connection as NAT type 3 then you most likely have some sort of interference within your connection to the online servers.
Note: You can visit the Sony PS4 manual website for additional details regarding the connection test:
There are three possible NAT types:
- NAT Type 1 has no restrictions and will be able to connect with any other players.
- NAT Type 2 will have some restrictions and will be unable to communicate or play with users with a strict NAT.
- NAT Type 3 may not be able to join or communicate in certain game sessions. Average matchmaking wait times will be affected.
If your NAT type is Type 2 or Type 3, please try the steps below:
1. Restart your network hardware. Turn off your PS4, modem and router and wait 15 - 30 seconds.
2. Fully power up your modem.
3. Fully power up your router.
4. Turn on your PS4 and test the network connection again.
If you still have trouble then you may have a firewall interfering with your connection. Please configure the following network ports and enable UPnP through your router.
PlayStation Network Required Ports
UDP: 3478, 3479, 3658, 4646
TCP: 80, 443, 1935, 3478, 3479, 3480
Directions for configuring network ports are specific to the software and hardware being used, and can be found by visiting the manufacturer's website.
Please visit https://support.ubi.com/en-US/faqs/000024619 for more information.
If this does not solve your problem, try placing your PlayStation 4 in the DMZ of the router or establishing a direct connection to your modem and retry.