D-Link DIR-822 User Manual page 16

Section 3 - Configuration
If the router does not detect a valid Ethernet connection from the
Internet port, this screen will appear. Connect your broadband
modem to the Internet port and then click Try Again.
If the router detects an Ethernet connection but does not detect the
type of Internet connection you have, this screen will appear. Click
Guide me through the Internet Connection Settings to display a
list of connection types to choose from.
Select your Internet connection type and click Next to continue.
D-Link DIR-822 User Manual 12