D-Link DIR 601 - Dlink Wireless N 150 Home Router Product Manual page 100

Secton  - Connectng to a Wreless Network
3. The Wireless. Network. Connection box will appear. Enter the
WPA-PSK passphrase and click Connect.
It may take 20-30 seconds to connect to the wireless network. If the
connection fails, please verify that the WPA-PSK settings are correct.
The WPA-PSK passphrase must be exactly the same as on the
wireless router.
D-Lnk DIR-601 User Manual 6