An "ASUS router login" refers to the process of accessing the web-based interface of an ASUS router. This interface allows users to configure and manage their network settings, including setting up wireless connections, managing passwords, updating firmware, and controlling access. To log in, users typically enter the router's IP address (usually 192.168.1.1 or 192.168.0.1) into a web browser, then enter the default username and password provided by ASUS or those they have set up themselves.