To start with Linksys Velop MX4200 setup you first need to ensure that your modem is connected to the internet port on the node. Now power on the node, the LED light on the node will turn solid purple once it is fully on. Connect your device to the node, for this  make use of an ethernet port. On your device open a web browser and in the address bar enter http://192.168.1.1 and press 'Enter'. Now enter "admin" in the Username and click on 'Sign in' a pop-up will appear on that click on 'Create a new one' after that you will be taken to a page to create a new password. Just click on 'Reset Password' and enter the recovery key code which is available on the label at the bottom of your router. Press" Submit". Enter the new details and tap on 'Reset'. You will be logged in to the dashboard. Now click on the CA- Connectivity - CA Router Linksys Velop MX4200 Setup , enter the Username and password click on "Setup Node" and then on "Apply". Now you will see a new Wi-Fi name just connect to it and your setup is done.