D-Link PowerLine N150 Mini User Manual page 45

Section 4 - Connecting to a Wireless Network
5. Enter the same security key or passphrase (Wi-Fi password) that is
on your router and click OK. You can also connect by pushing the
WPS button on the router.
It may take 20-30 seconds to connect to the wireless network. If the
connection fails, please verify that the security settings are correct. The
key or passphrase must be exactly the same as on the wireless router.
D-Link DHP-W221AV User Manual 41