D-Link AC750 User Manual page 55

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 during this step to
enable the WPS function.
When you have established a successful connection to a wireless network,
the word Connected will appear next to the name of the network to
which you are connected to.
D-Link DIR-813 User Manual 51