I took back a new modem Comcast sent me because I have no idea how to install. You can’t expect seniors to be able to do those things. I just got a text from Comcast saying after 1/25/18 my old modem would not pick up your signal anymore. That must not happen. Been with Comcast many years. If they expect me to have a new modem, they need to send a tech to install it and set up my WiFi.