D-Link DSL-G604T User Manual page 58

Configure WPA-PSK Settings
WPA-PSK requires a shared key and does not use a separate server for authentication. PSK keys can be ASCII
or Hex type.
Figure 4- 11. Configure WPA-PSK Security for WLAN
To configure WPA settings, select the WPA-PSK option. The menu will change to offer the appropriate settings.
Type in the IP address of the RADIUS server used in the Server IP Address field. Change the Group Key
Interval as desired. Select either PSK Hex or PSK String key and type the key in the space provided. Click the
Apply button to put the changes into effect.