D-Link DCS-2121 User Manual page 14

If you have not yet connected the power, do so now. Check the LED on the front of the camera
to make sure it is powered on.
Click Next to continue.
The utility will begin to search for the camera. It uses the MAC ID to identify it.
Click Next
If the camera is successfully located, the MAC ID you wrote down previously appears in the
MAC ID List. If there are multiple MAC IDs listed, choose the MAC ID for the camera being
installed.
Click Next to continue.
Click Next
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