Bring to to the store and swap it out
I am not sure. I would call XFINITY they will help you out.
Try turning off your protectipn sich as mcafee or kaspersky
Reboot! If it's the Comcast modem and it does not work, they will instantly swap it at the store.
Call comcast
Yep. Try the usual power off, power on cycle on modem, then router. Count to ten before each power on.
Excuse me but maybe every one has me confused. I don't work for Comcast.
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