D-Link AC750 User Manual page 54

Section 5 - Connecting to a Wireless Network
and click Next.
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 DWR-118 User Manual 50