- Connect your primary W-Fi router to the computer and identify the default gateway.
- On your computer, click the Windows icon available at the bottom-left corner of the screen.
- Type "cmd" in the search panel and give a right-click on the Command Prompt tab from the search result.
- Click the Run as administrator option from the drop-down menu.
- In the Command Prompt window, type the "ipconfig" command and press the Enter key.
- You can identify the IP address of the primary Wi-Fi router near the Default Gateway field.
- After identifying the IP address of the primary Wi-Fi router, open the default browser and enter the IP address in the URL field.
- In the login portal, log in with the help of the username and password of the primary Wi-Fi router.
- You can find the network credentials of the Wi-Fi router from the label attached at the back-side of the Wi-Fi router box.
- Click the Wireless Settings tab and note down the SSID and Network Key of the Wi-Fi router.
- Now, reset the D-Link router to the factory defaults if you have already configured the basic settings.
- Connect it to another PC and identify the IP address using the Command Prompt app.