Comcast customer Ronaldo Boschulte didn’t know exactly what he was getting when the company swapped his malfunctioning modem for a new one. The cable modem doubles as a Wi-Fi router—that much he was ...

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Each month, when your Comcast bill comes due, many of you pay a monthly fee for the device that provides internet access in your homes. Rental for what’s known as the Xfinity Gateway typically runs ...