D-Link DAP-1620 Quick Installation Manual page 26

DAP-1620 Quick Installation Guide
If you connect to a hidden network, select the band where the hidden network
operates from the Frequency band list and enter the network name in the
Network name (SSID) field. Then select a needed value from the Network
authentication list and then, if needed, enter the password in the relevant
field.
3. Click the NEXT button.
26