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If you are receiving any connection issues, or having trouble connecting to a multiplayer game please try the following:
- Start by testing your network connection with the following steps:
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 will most likely have some sort of interference within your connection to the online servers.
Alternately, you can view your NAT type directly within the multiplayer menus near the top left corner.
Selecting Online from within the AC4 multiplayer menu will provide a more detailed description of your NAT settings.
- There are three possible NAT types
Open NAT (Green)
- Open NAT has no restrictions and will be able to connect with any other players.
Moderate NAT (Orange)
- Moderate NAT will have some restrictions and will be unable to communicate or play with users with a strict NAT.
Strict NAT (Red)
- Strict NAT may not be able to join or communicate in certain game sessions. Average matchmaking wait times will be affected.
If your NAT type is moderate or strict, please try the steps below:
1. Restart your network hardware. Turn off your PS4, Modem, and Router and wait about 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
- At this point 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
TCP: 80, 443, 1935, 3478, 3479, 3480
UDP: 3478, 3479
Finally, if this does not solve your problem, try establishing a direct connection to your modem (bypass the router) and retry.