PlayStation Error Code NW-31453-6 — What It Means & How to Fix It

What Does This Error Mean?

NW-31453-6 means your PlayStation 4 could not authenticate with your Wi-Fi network. In plain terms, your console tried to join your Wi-Fi but the router rejected it. This is almost always caused by an incorrect Wi-Fi password, a router configuration issue, or signal interference.

Affected Models

PlayStation 4
PlayStation 4 Slim
PlayStation 4 Pro

Common Causes

The Wi-Fi password stored on the PS4 is incorrect or was recently changed
The router is using a security setting (like WPA3) that the PS4 does not support
The router has a MAC address filter turned on that is blocking the PS4
The Wi-Fi signal is too weak or unstable for a reliable authentication handshake
The router's firmware has a bug or needs a restart to clear a connectivity issue

How to Fix It

Forget the Wi-Fi network and reconnect. On the PS4, go to Settings > Network > Set Up Internet Connection > Use Wi-Fi > Easy. Select your network, enter your Wi-Fi password carefully, and confirm.

Re-entering the password from scratch is the fastest fix if the password was recently changed.
Restart your router. Unplug it from the wall, wait 30 seconds, and plug it back in. Wait until all the indicator lights have settled before trying to connect again.

A router that has been running for weeks can accumulate connection problems that a reboot clears instantly.
Check your router's security settings. Log into your router's admin panel (usually at 192.168.1.1 or 192.168.0.1 in a browser). Make sure the security mode is set to WPA2-PSK or mixed WPA2/WPA3.

The PS4 does not support WPA3-only mode. If your router is set to WPA3 exclusively, the PS4 cannot connect.
Check if MAC address filtering is enabled on your router. If it is, add the PS4's MAC address to the allowed list. You can find the PS4's MAC address at Settings > System > System Information.

MAC address filtering is a security feature that blocks unknown devices. The PS4 will always fail authentication if its address is not on the list.
Try connecting with an Ethernet cable as a workaround. Plug a network cable from your router directly to the PS4. If this works, the issue is definitely with your Wi-Fi setup.

A wired connection also gives you faster, more stable speeds for downloads and online gaming.

When to Call a Professional

NW-31453-6 is a network configuration issue, not a hardware fault. No repair shop visit is needed. If you cannot access your router settings and none of the steps below work, contact your internet provider — they can usually guide you through router configuration over the phone.

Frequently Asked Questions

How do I find my Wi-Fi password if I have forgotten it?

On Windows, go to Control Panel > Network and Sharing Center, click your Wi-Fi network, then click Wireless Properties > Security and tick Show Characters. Alternatively, check the bottom or back of your router — many routers have the default Wi-Fi password printed on a sticker.

My password is definitely correct but it still fails. What now?

If the password is correct but authentication still fails, the router is likely the issue. Restart the router, check its security mode (use WPA2), and make sure MAC filtering is off. If you recently got a new router, you may also need to update the network name and password on all your devices.

Does the PS4 support 5 GHz Wi-Fi?

The PS4 (original model) supports only 2.4 GHz Wi-Fi. The PS4 Slim and PS4 Pro support both 2.4 GHz and 5 GHz. If you have a 5 GHz-only network and an original PS4, switch your router to broadcast on 2.4 GHz as well.