A:Answer I have Comcast, and this was listed on their b site as a compatible modem for their network, so it should work. As far as connections, it’s a coax cable modem so you should just need to attach the coax cable to it. This unit does not have built in WiFi so you will need to buy a separate WiFi router to broadcast a network signal if you need that. There is 1 Ethernet port on the back so if you are just puffing directly into it then you should be fine for 1 computer at a time.