A:Answer Not entirely, you will need a router as well. What you have from Comcast is a modem/router combo. A modem brings the internet to your residence. A router then disperses the internet to all your devices. The box you have from Comcast does both. You will need this modem as well as a router to replace the Comcast box you rent.
I recently replaced my rented Comcast modem/router with this modem and the router I linked below (good performance, low price). They were easy to set up as well. Getting your own modem and your own router will save you money in the end and you'll have better internet performance. Hope this helps!
