Swapping the rental for my own modem
Hi. I bought a Netgear CM500V Cable modem and when I connect it to my computer, it doesn't seem to connect me to the internet. I followed the instructions, but no luck. I reconnect the Comcast/Xfinity modem and the internet is fine. My internet service has already been activated, I'm simply swapping modems. Any clues as to what I may or may not need to do? Trying to get support from Comcast isn't exactly easy.