I just got the modem for my new Xfinity internet today, I followed all instructions for set up and it's just been blinking YELLOW for the past few hours, I've tried everything,
THE GATEWAY / ARRIS XB6-T WIRELESS MODEM, ROUTER, WITH VOIP TELEPHONE JACKS MAKES NOISE WHEN IT COLLECTS TOO MUCH DUST AT THE BOTTOM | Xfinity Community Forum