For the Wavlink router WPS setup, there will be no requirement to use any of its login and other details. If your existing modem has a WPS button, you can use this feature. But, the other two setup processes require accessing the Wavlink router login page through the web browser and the WiFi app. Also, there will be a need to collect and use the default login details of the router to complete the setup window. More than that, you will need to search for the web or IP address of the router in the web browser. In an alternative way, you can get the Wavlink WiFi app on your smartphone for the same purpose. So, once you are on the login portal, the username and password field will be on the screen. Insert the details without any spelling and numeric mistakes and complete the login process in this way.