Changing the login password of a Spectrum Password requires you to first connect the router to a computer. You can use either the wireless or wired mode of connection. Once the devices are connected, follow the below-mentioned steps to perform a Spectrum Router login and change the login password: Open an internet browser on your computer. Type the router’s IP address in the browser’s address bar and press Enter to open the router login page. Enter the router login credentials in the fields provided and click on “Login” to log into the admin console of the router. Click on the “Advanced” tab and follow the on-screen instructions to change the login password of the router.