54D-Link GO-RT-N150 User Manual
Section 5 - Connecting to a Wireless 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.