136D-Link DIR-890L User Manual
Section 5 - Connecting to a Wireless Network
5. Enter the same security key or passphrase (Wi-Fi password) that is on 
your router and click Connect. 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 the one on the wireless 
router.