If you want to change almost any setting to do with your wifi, you'll need to log into your router first. Here's how to do it.

How to Configure a Router From D-Link If you need to change settings on your D-Link router, connect to the router digitally through your Wi-Fi connection.

Configure D-Link Router Power off your computer and the D-Link router. Remove the Ethernet cable from the modem's port and insert it into one of the middle Ethernet ports on the router.