Configure Wpa-Psk - D-Link Xtreme N Duo DAP-1522 User Manual

Section 5 - Connecting to a Wireless Network

Configure WPA-PSK

It is recommended to enable WEP on your wireless bridge or access point before configuring your wireless adapter. If
you are joining an existing network, you will need to know the WEP key being used.
Click on a network (displayed using the SSID) using WPA-PSK
under Select a network to connect to and then click the Connect
button.
Enter the appropriate security key or passphrase in the field
provided and then click the Connect button.
D-Link DAP-15 User Manual