Bottom - D-Link DAP-1620B1 User Manual

Section 1 - Product Overview
LAN
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Reset Button
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D-Link DAP-1620 User Manual
Connect an Ethernet cable if you are adding wireless to wired network.
Use an unfolded paperclip to press and hold the reset button on the bottom of DAP-1620 for 10 seconds
to restore the factory default settings.

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