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How to Fix PS4 Error Code NW-31449-1 on Windows 11: Step-by-Step Troubleshooting Guide

If you are encountering the PS4 error code NW-31449-1 while trying to connect your PlayStation 4 on a Windows 11 network, you are not alone. This error typically indicates a network connection issue that prevents your PS4 from accessing online services. Fortunately, this problem can often be resolved with some straightforward troubleshooting steps.

In this guide, we will walk you through easy and detailed instructions to fix this error. Each step is explained clearly to help even beginners understand and follow along.

Before diving into complex solutions, it’s best to try the simplest fixes first. This approach often saves time and effort.

Let’s begin by checking some quick prerequisites to ensure your setup is ready for troubleshooting.

Quick Note: Prerequisites and Basic Checks

  • Check your internet connection: Make sure your Windows 11 PC has a stable internet connection. Try opening websites or streaming videos to confirm connectivity.
  • Verify PS4 network status: Ensure that your PS4 is connected to the same network as your PC, either via Wi-Fi or Ethernet cable.
  • Restart devices: Power cycle your router, modem, PS4, and Windows 11 PC. This simple step can clear temporary glitches.
  • Update system software: Confirm that your PS4 firmware and Windows 11 are up to date to avoid compatibility issues.

Step 1: Restart Your Network Devices

Restarting your router and modem refreshes the network connection and can fix many connectivity errors. Here is how to do it:

  1. Turn off your PS4 and Windows 11 PC.
  2. Unplug your router and modem from the power source.
  3. Wait for at least 1 minute to allow the devices to fully power down.
  4. Plug your modem back in first and wait until all lights indicate a stable connection.
  5. Next, plug in your router and wait for it to fully boot.
  6. Turn on your Windows 11 PC and PS4, then try connecting again.

This step is important because routers can sometimes have temporary issues that cause network errors. Restarting them clears the cache and resets connections.

Step 2: Set a Static IP Address for Your PS4

Sometimes, the error occurs due to IP address conflicts or dynamic IP assignment issues. Assigning a static IP to your PS4 can help maintain a stable connection.

How to Assign a Static IP on PS4:

  1. On your PS4, go to Settings > Network > Set Up Internet Connection.
  2. Choose your connection type (Wi-Fi or LAN cable).
  3. Select Custom setup.
  4. For IP Address Settings, select Manual.
  5. Enter an IP address that fits your network range. For example, if your router’s IP is 192.168.1.1, use something like 192.168.1.100.
  6. Set Subnet Mask to 255.255.255.0.
  7. Set Default Gateway to your router’s IP address (usually 192.168.1.1).
  8. Enter DNS settings manually, for example:
    • Primary DNS: 8.8.8.8 (Google DNS)
    • Secondary DNS: 8.8.4.4
  9. Complete the setup and test the internet connection.

Using a static IP avoids conflicts and ensures your PS4 always uses the same network address, reducing connection errors.

Step 3: Disable Windows Firewall Temporarily

Sometimes, Windows Firewall or third-party security software may block connections between your PC and PS4.

To check if firewall interference is the cause:

  1. Click the Start menu and open Windows Security.
  2. Go to Firewall & network protection.
  3. Click on your active network profile (e.g., Private network).
  4. Toggle off the Microsoft Defender Firewall.
  5. Try connecting your PS4 again to see if the error persists.

Note: Remember to turn the firewall back on after this test to keep your PC protected.

Step 4: Use Port Forwarding on Your Router

PS4 requires certain ports to be open for smooth online connectivity. If these ports are blocked, you may see error codes like NW-31449-1.

Here’s how to forward ports:

  1. Find your router’s IP address (usually 192.168.1.1 or 192.168.0.1).
  2. Open a web browser on your PC and enter the router’s IP in the address bar.
  3. Log in with your username and password. (Check your router manual if unsure.)
  4. Locate the Port Forwarding or Virtual Server section.
  5. Add new port forwarding rules for PS4 using these ports:
    • TCP: 80, 443, 3478, 3479, 3480
    • UDP: 3478, 3479
  6. Assign the forwarded ports to your PS4’s static IP address.
  7. Save the settings and restart your router.

Port forwarding ensures your router allows the necessary PS4 traffic through, preventing connectivity errors.

Step 5: Check DNS Settings on Windows 11

Incorrect DNS settings on your PC can affect network communication. Setting DNS servers manually can improve connection stability.

How to Change DNS on Windows 11:

  1. Press Win + I to open Settings.
  2. Go to Network & Internet > Advanced network settings > More network adapter options.
  3. Right-click your current network adapter and select Properties.
  4. Select Internet Protocol Version 4 (TCP/IPv4) and click Properties.
  5. Choose Use the following DNS server addresses.
  6. Enter:
    • Preferred DNS server: 8.8.8.8
    • Alternate DNS server: 8.8.4.4
  7. Click OK and restart your PC.

This step helps by ensuring your PC uses reliable DNS servers to resolve network addresses correctly.

Frequently Asked Questions (FAQs)

What causes the PS4 error code NW-31449-1?

This error usually indicates a network issue, such as unstable internet, IP conflicts, or blocked ports preventing your PS4 from connecting to online services.

Can this error be fixed without changing router settings?

Yes, sometimes simply restarting devices or setting a static IP on your PS4 can resolve the error without modifying router configurations.

Is it safe to disable Windows Firewall temporarily?

Yes, temporarily disabling it for testing is safe, but you should re-enable it afterward to keep your PC protected from threats.

Will port forwarding expose my network to security risks?

Port forwarding opens specific ports for your PS4 only. When done correctly, it is generally safe. However, avoid forwarding unnecessary ports and keep your router firmware updated.

What if I still see the error after following all steps?

There may be an issue with your Internet Service Provider (ISP) or PlayStation Network status. Contact your ISP or check the official PlayStation Network status page.

When Nothing Works

If you have tried all the above steps and the error code NW-31449-1 still persists, consider the following options:

  • Contact your Internet Service Provider (ISP): There might be network restrictions or outages affecting your connection.
  • Check PlayStation Network status: Visit https://status.playstation.com to see if servers are down.
  • Reset your router to factory settings: This will clear any misconfigurations but will require you to set up your network again.
  • Reach out to PlayStation Support: For specialized help, visit https://www.playstation.com/support/.

Conclusion

PS4 error code NW-31449-1 usually stems from network connectivity problems that can be fixed by following simple troubleshooting steps. Starting with restarting devices, setting a static IP, and checking firewall settings often resolves the issue quickly. More advanced methods like port forwarding and DNS configuration provide further solutions if needed.

Always ensure your devices and software are updated, and don’t hesitate to consult official resources or your ISP if problems persist. With patience and systematic troubleshooting, you can restore your PS4’s online connectivity on Windows 11 without much hassle.

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