Are you experiencing NW-31374-8 error on your PS4 and you have no idea how to fix it? In this article, we’ll explain to you what this error means and the possible solutions that you can try to resolve it.
What does NW-31374-8 error mean?
NW-31374-8 is one of the connection issues that has been observed on the PlayStation 4 for years. If you are getting this error code, your PS4 is more likely having trouble connecting to the PlayStation Network, or to a game server.
The NW-31374-8 error is usually accompanied by “Connection timed out.” message and may show up when attempting to connect to a PSN service, such as when you check your account details (Settings>Account Management), or when trying to play an online multiplayer game.
Causes of PS4 NW-31374-8 error code on the PS4
There are several reasons for error NW-31374-8 that you need to be aware of.
By far, the most common reason for this error is coming from the server side of things. Sony PlayStation Network can go down sometimes due to an outage, maintenance, or high traffic.
If you are getting the NW-31374-8 error code when trying to access a certain PSN service like Account Management to check your account details, you may have a server problem.
Router firewall issue.
Other PS4 users may experience this error because of how their network or networking equipment are configured. If your router’s firewall settings are blocking certain ports which are needed by a game or PSN to work, it may lead to this error. Thankfully, an issue like this can easily be fixed by opening the ports, a process called port forwarding.
At other times, the NAT or Network Address Translation type may be to blame. Again, NAT type issues on the PS4 can be fixed by port forwarding.
Slow internet connection.
The performance of your home internet connection may also play a role when it comes to PS4 network connection issues. If your download speed is too slow, or if your network is busy due to high number of devices using the internet at the same time, your PS4 may not be able to establish a stable connection to the servers.
How to fix PS4 NW-31374-8 error?
These are the solutions that you can try if you’re getting the NW-31374-8 error on your PS4:
Fix #1: Check the PSN server status.
Before doing any checks on your PS4, router settings, or home network, it’s highly recommended that you check if there’s any on-going server problems such as an outage or high traffic at the moment. To do that, you want to visit the official PSN server status page.
Fix #2: Run a speed test.
If the servers are working normally and there are no indicated issues with the service you’re trying to access, the next step is to run a PS4 speed test.
The speed test result will give you a number of useful details that might help you pinpoint the cause of the problem. For example, if your NAT type shows that you have a NAT type 3 instead of either a Type 1 or 2, this can be the reason for the NW-31374-8 error. NAT type 3 is the least desirable NAT for your PS4 as it will block you from playing online, or to connect to any PSN services.
Fix #3: Power cycle the router.
This troubleshooting step may sound simple and easy to do but it oftentimes help fix minor network bugs and connection issues on the PS4. If you don’t restart your router regularly, make sure that you reboot it now. Just turn it off normally and unplug it from the power source for 30 seconds.
Try to ensure that you do this step at least once every few days to keep the router in top shape.
Fix #4: Check your router firewall settings.
The other thing that you need to do on your router is to ensure that its firewall settings are properly configured to allow PSN services to work.
There are two important ports that must be opened in your router firewall settings so your PS4 can communicate with Sony PlayStation services — UDP Ports 3478 and 3479.
If these UDP Ports are blocked, NW-31374-8 may show up every time you connect to an online game, or when trying to access the PSN.
If you have no idea how to open these ports in your router firewall settings, consult the router manufacturer or your Internet Service Provider.
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