DIR4999

Cause

Deauthentication frame received from unknown source

Fix Steps

1. Forget the WiFi network on your device
2. Access router admin panel at 192.168.1.1 or 192.168.0.1
3. Navigate to Wireless Security settings
4. Verify password contains no special characters that may conflict

Related Errors

• T8558 – Actiontec T8558 Authentication Error
• MR3071 – Synology MR3071 Authentication Error
• RT-AX88U-E547 – Asus RT-AX88U-E547 Authentication Error
• C-3720 – Cisco C-3720 Authentication Error