D-Link AC750 User Manual page 122

Section 4 - Security
You will then be prompted to enter the network security key (Wi-Fi password) for
the wireless network. Enter the password into the box and click Next.
If you wish to use Wi-Fi Protected Setup (WPS) to connect to the router, you can also
press the WPS button on your router at the point to enable the WPS function.
When you have established a successful connection a wireless network, the word
Connected.will appear next to the name of the network to which you are connected.
D-Link DIR-810L User Manual 118