Turn off Universal Plug and Play (UPnP) on both your router and the DVR to prevent automatic, unmonitored port forwarding.
Always refer to your device's manual or contact Dahua support for the most accurate and up-to-date information regarding your specific model.
This information is provided for educational and security purposes. Unauthorized access to surveillance systems is illegal. Always ensure you have permission to reset or access a DVR.
To help find the right fix for your specific setup, let me know: What is the exact of your Dahua DVR? dahua dvr default password
If your DVR was initialized with an email address, you can use the local interface to trigger a reset. Click on the DVR login screen. Select the QR Code reset option. Open the DMSS app on your smartphone. Go to Me > Toolbox > Device Password Reset . Scan the QR code displayed on your DVR monitor.
If you have changed your password but have since forgotten it, don't panic. There are several legitimate methods to regain access to your Dahua DVR without losing your data.
For the vast majority of Dahua DVRs, NVRs, and IP cameras, the factory credentials are: Turn off Universal Plug and Play (UPnP) on
Changing the password is step one. Here’s how to truly secure your Dahua DVR:
It's highly recommended to change the default password as soon as possible to prevent unauthorized access to your Dahua DVR. To change the password:
Possible reasons:
: Default is often 9999@ , but the "User Account" mode must be enabled for the password to be accepted. Recovery and Reset Methods
| Action | Why It Matters | |--------|----------------| | | Remove default , user , or any unused accounts. | | Enable password aging | Force a password change every 90 days. | | Use a strong password | Avoid Password123 or Dahua2024 . | | Update firmware | Dahua regularly patches known vulnerabilities. | | Disable P2P/UPnP | Prevents unintended internet exposure. | | Change HTTP/HTTPS ports | Reduces automated scanner hits. | | Enable account lockout | Locks after 5–10 failed login attempts. |
If the default combinations do not work and you are locked out of your system, use these official methods to regain access. Method A: The QR Code / Security Questions Reset Unauthorized access to surveillance systems is illegal
Power the unit back on while continuing to hold the button for 30 seconds.