How to Fix Wi-Fi Password Not Working

When your Wi-Fi password fails to connect, the issue typically stems from incorrect credentials, network changes, or device-specific problems. These steps resolve authentication failures across all major platforms.

1. Verify the password is correct. Check the exact password on your router label or with your network administrator. Wi-Fi passwords are case-sensitive and include special characters. On Windows, view saved passwords in Settings > Network & Internet > Wi-Fi > Manage known networks. On macOS, use Keychain Access to reveal stored passwords.
2. Forget and reconnect to the network. Remove the saved network profile completely. On Windows, go to Settings > Network & Internet > Wi-Fi > Manage known networks, select your network, and click Forget. On macOS, System Preferences > Network > Wi-Fi > Advanced, select the network and click the minus button. On mobile devices, tap the info icon next to the network name and select Forget.
3. Restart your network adapter. Disable and re-enable your Wi-Fi connection. On Windows, open Device Manager, expand Network adapters, right-click your Wi-Fi adapter, and select Disable device, then Enable device. On macOS, turn Wi-Fi off in the menu bar icon, wait 10 seconds, then turn it back on.
4. Check for network security changes. Verify the network security type matches what your device expects. Access your router admin panel by typing 192.168.1.1 or 192.168.0.1 in your browser. Navigate to Wireless Security settings and confirm the encryption type is WPA2-PSK or WPA3-PSK. Avoid WEP encryption, which many modern devices reject.
5. Reset network settings on your device. Clear all network configurations and start fresh. On Windows 10/11, go to Settings > Network & Internet > Status > Network reset. On macOS, delete the file /Library/Preferences/SystemConfiguration/com.apple.network.identification.plist after backing up. On iOS, go to Settings > General > Reset > Reset Network Settings.
6. Update network drivers and firmware. Download the latest drivers for your Wi-Fi adapter from the manufacturer's website. On Windows, check Device Manager for driver updates or use Windows Update. For routers, access the admin panel and check for firmware updates in the Administration or System section. Apply updates and restart both devices.
7. Test with different devices. Attempt to connect another device using the same password. If other devices connect successfully, the issue is device-specific. If no devices can connect, the problem lies with the router or network configuration. Contact your internet service provider if the issue affects all devices.