Log in to the Linksys router is a requirement if you are using the web portal or WiFi app setup. But, unlike these processes, you will not need to access the login and setup pages in the WPS approach. But, if your existing modem does not have a WPS button or if you want to manage the network, you need to choose those options. In the first approach, which is the web setup portal, you need to use the networked device’s web browser. So, launch the web browser and insert the router’s default web or IP address into the search bar. 

In any case, if the login page is not accessible with the web address then, use the IP address instead of that. As a result, the 192.168.1.1 Linksys router login page will appear to you, where you can complete the login process by using the default login credentials. In the next step, the setup portal will be accessible to you from there you can carry out the further process. In the end, relocate the router after finishing the setup process to get better WiFi coverage and strong signals at your place.