You need to set up your Linksys smart WiFi router correctly before you start using it. To set it up, you must log into the user interface of the router. For the Linksys smart WiFi login, there are two methods. You can either log in through the web interface or use the Linksys app. For the former method, you require the default IP address to log in. In the other method, you just need to install the Linksys app and then you can set it up correctly following the instruction.