D-Link DCS-2000 Manual page 37

Configuration > Tools > Default
Click on the Default button to access the factory Default settings from the Tools
menu.
Click Default
Click Apply on the screen to restore the factory default settings. This means
any changes made will be lost and the system will be reset to the initial
status when shipped from the factory. After confirmation, the system will
restart and require the Installer software program to setup the DCS-2000.
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