To log in to your Netgear WNDR4500, you need the IP of your device, the username, and the password. First, open your web browser and type 192.168.1.1 to access the router's web-based user interface. Now, enter a username and a password. The Netgear WNDR4500 default password is password and the default username is admin. Enter the username & password, and hit Enter,Now you can see the control panel of your router.