PlayStation Error Code NW-102999-9 — What It Means & How to Fix It

What Does This Error Mean?

NW-102999-9 is a PlayStation 5 network error indicating the console failed to authenticate with your Wi-Fi network or could not obtain the necessary credentials to connect. This often appears when the PS5 cannot complete the WPA2 or WPA3 handshake with your router. Common triggers include a wrong Wi-Fi password, a changed network name, or a router security setting that is blocking the PS5.

Affected Models

PlayStation 5
PlayStation 5 Digital Edition
PlayStation 5 Slim
PlayStation 5 Digital Edition Slim

Common Causes

Incorrect Wi-Fi password saved on the PS5 — password was changed on the router but not updated on the console
Router using WPA3 security that the PS5 has trouble authenticating with in some configurations
MAC address filtering on the router is blocking the PS5
Router assigned the maximum number of connected devices and is rejecting new connections
Corrupted Wi-Fi network profile saved on the PS5 needs to be deleted and recreated

How to Fix It

Forget the saved Wi-Fi network on your PS5 and reconnect from scratch. Go to Settings > Network > Settings > Set Up Internet Connection. Select your network, then choose Forget. Reconnect and re-enter your Wi-Fi password carefully.

An old, corrupted network profile is a very common cause of NW-102999-9. Starting fresh with a clean connection setup often resolves it immediately.
Verify your Wi-Fi password. Log into your router's admin panel (typically at 192.168.1.1 or 192.168.0.1 in your browser) and confirm the exact Wi-Fi password. Passwords are case-sensitive — even one wrong character will prevent authentication.

If you recently changed your router or Wi-Fi password, every device needs to be updated with the new password — including your PS5.
Check your router's security settings. If your router uses WPA3 only, try switching it to WPA2/WPA3 mixed mode or WPA2 only. Some PS5 consoles have difficulty completing WPA3-only authentication.

WPA2/WPA3 mixed mode maintains strong security while allowing older devices (and occasionally the PS5) to connect more reliably.
Check if MAC address filtering is enabled on your router. If it is, add the PS5's MAC address to the allowed list. Find your PS5's MAC address at Settings > Network > Connection Status.

MAC address filtering is a security feature that only allows specific devices to connect. If your PS5's MAC address is not on the allowed list, it cannot authenticate.
Restart both your router and your PS5. After the router fully reconnects to the internet, power the PS5 on and attempt to connect again. If still failing, try connecting to a mobile hotspot from your phone — if that works, the issue is specific to your router's configuration.

Successfully connecting to a hotspot confirms the PS5's Wi-Fi hardware is working fine. The problem is in your router's settings.

When to Call a Professional

NW-102999-9 is a network configuration issue. No repair technician is needed. If you cannot resolve it after following the steps below, contact your internet router's manufacturer for help configuring your Wi-Fi security settings.

Frequently Asked Questions

What is WPA3 and why does it cause problems with the PS5?

WPA3 is the newest Wi-Fi security standard. It is more secure than WPA2 but uses a different authentication handshake. Some PS5 units (particularly older ones) have occasional compatibility issues with WPA3-only networks. Switching your router to WPA2/WPA3 mixed mode maintains strong security while ensuring compatibility.

I know my password is correct — why does authentication keep failing?

Even with the correct password, authentication can fail due to corrupted saved network profiles, MAC address filtering, or router device limits. Deleting the saved network on your PS5 and reconnecting from scratch (step 1 above) is the most effective fix for correct-password authentication failures.

My PS5 was connecting fine before and now shows NW-102999-9 — what changed?

Something changed either on your network or on your PS5. Common changes that trigger this: your ISP replaced your router (with different security settings or a different password), your router firmware updated and changed security settings, or your PS5 saved network profile became corrupted. Deleting and recreating the Wi-Fi connection on the PS5 is the best first step.