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Section 5 - Troubleshooting
Replacing a failed disk drive
If a disk drive fails, the Disk Status LED will turn red. When replacing a failed disk drive, be sure to use a new drive of the same
or slightly greater capacity.
Step 1: Power off the NVR.
Step 2: Open the unit's cover.
Step 3: Pull out the failed disk drive.
Step 4: Install a new disk drive into the slot. Please refer to Hard Drive Installation on page 9.
If you forget the admin password for the device
If you forget the password, you can reset the device, which will reset the password for the admin account to its default (blank).
Please note that this will reset all settings on the device back to the factory defaults, and it may cause data to become inaccessible;
it is highly recommended that you back up your recorded data before resetting your device. To reset the device, make sure it
is turned on then press and hold the reset button for 10 seconds until the Power LED flashes three times. The administrator
password will now be blank.
If you cannot log in to the NVR using your web browser
Check the settings of your anti-virus software to make sure it isn't blocking access to the NVR web interface.
If you cannot see the complete web interface in your web browser
If you cannot see the complete page of the system, the ActiveX installation process may not be complete.
Step 1: Open your web browser and connect to your NVR.
Step 2: The browser will ask whether to install ActiveX.
Step 3: Click the upper bar to begin the installation process.
Step 4: Click Install to complete the process.
D-Link DNR-2020-04P User Manual
Troubleshooting
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