The default IP address for accessing the settings of a D-Link router is typically 192.168.0.1 or 192.168.1.1. To access the router's configuration page, a user should enter one of these IP addresses into the web browser's address bar. This action will direct the user to the router's login page, where they will need to enter the admin username and password.
If the default IP address has been changed or if a user is uncertain about it, they can check the router's documentation or look for a label on the device itself that may provide this information. Additionally, it is a good practice to consult the current D-Link website for detailed documentation pertinent to the specific router model, as it may contain helpful information regarding accessing settings and any default credentials needed.