Wi-Fi Error: WPA Handshake Failed — What It Means & How to Fix It

What Does This Error Mean?

A WPA handshake is the security verification that happens when a device joins a Wi-Fi network. Your device and router exchange encrypted messages to confirm the password is correct and set up a secure connection. When the handshake fails, the connection is blocked — even if the password is right.

Affected Models

Windows 10
Windows 11
Android
iOS
macOS
Linux
Network devices

Common Causes

The Wi-Fi password does not match between the device and the router
The router and device disagree on which WPA version to use (WPA2 vs WPA3)
Signal interference or weak signal is causing packets to drop during the handshake
The router firmware has a bug affecting WPA handshake completion
The device's Wi-Fi driver has a compatibility issue with the router's WPA implementation

How to Fix It

Verify your Wi-Fi password is correct. Even one wrong character will cause the WPA handshake to fail every time. Check the router sticker or view it from a connected device.

The handshake uses the password to generate encryption keys — a wrong password means wrong keys and an immediate failure.
Move closer to the router. Weak signal causes packet loss during the handshake process. The four-way handshake exchange must complete without any lost messages.

Try connecting from within 6 feet of the router to eliminate signal issues.
Change the router security setting from WPA3-only to WPA2/WPA3 mixed mode. Log into the router admin page and update the Wi-Fi security type.

WPA3-only causes handshake failures on many devices that only support WPA2.
Update your device's Wi-Fi driver or operating system. WPA3 support improved significantly in newer driver versions.

On Windows, check Device Manager. On Android and iOS, check for system updates.
Restart the router to clear any stuck session state from previous failed handshake attempts.

Some routers accumulate failed authentication attempts and start blocking further tries — a restart clears this.

When to Call a Professional

WPA handshake failures are usually fixable without professional help. If the issue only happens on one device, update its Wi-Fi driver or network software. If all devices fail the handshake, the problem is the router — contact your ISP or update the router firmware. Firmware updates are free and available on the router manufacturer's website.

Frequently Asked Questions

What exactly is a 'four-way handshake' in WPA?

When you connect to a WPA Wi-Fi network, your device and router exchange four messages to verify the password and set up encryption. Neither side ever sends the actual password over the air — instead, they each prove they know it by deriving the same encryption key. If any of the four messages fails or arrives corrupted, the handshake fails.

Can someone cause my WPA handshake to fail on purpose?

Yes — this is called a deauthentication attack or WPA handshake capture. Attackers sometimes force devices to reconnect in order to capture the handshake and attempt to crack the password offline. If you notice frequent dropouts followed by reconnection prompts, this may be happening. Using a strong, unique Wi-Fi password and WPA3 makes cracking extremely difficult.

Is WPA2 still safe, or should I upgrade to WPA3?

WPA2 with a strong password is still considered safe for home use. WPA3 offers better protection against password-guessing attacks. If your router and all your devices support WPA3, enabling it is worthwhile. If some devices only support WPA2, use mixed WPA2/WPA3 mode so all devices can connect.