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  • Question
    if I buy this modem for my comcast Infinity do I also have to buy a seperate router? Is there a router /modem combo?   (10 Answers)

    By bcohtofl April 12, 2016.

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    • Best 
      Answer

      I think you can still rent a single router from comcast but I wouldn't recommend it. They are usually refurbished and you can save quite a bit of money instead of renting. Plus you can much faster routers to match the blast speeds that comcast puts out.

      By bbyshoppa1214 July 24, 2016.

    • Question
      Will this modem support Comcast cable t.v., internet and phone service?   (10 Answers)

      By Anonymous December 3, 2015.

      Closed to new Answers

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      • Best 
        Answer

        This modem will support Comcast internet. I'm using it for that and am happy with the results. Note that you'll need a will need a separate wifi router, assuming you want a wifi connection. You can buy combination cable modem/wifi routers, but I'd recommend getting them separately so you can also replace them independently when the time comes. Comcast cable TV does not go through the cable modem (cable plugs directly into the X1 box) so is not relevant to your decision on a modem. This modem will NOT support Comcast phone service. When I got this modem I dropped my Comcast phone service and switched to Ooma (which I highly recommend for both quality and major price savings). [The Ooma device plugs in to your router via ethernet cable. You can then plug the phone line currently running from your Comcast-suppled modem into Ooma and you're good to go.]

        By JMac July 19, 2016.

      • Question
        Will this improve speed or content delivery vs. current DOCSIS 3.0 343 Mbps rated modem?   (5 Answers)

        By mdf1 April 30, 2016.

        Answers
        • Best 
          Answer

          Only if your internet plan with your ISP has speeds higher than 300Mbps or so.

          By Sangsuri September 2, 2016.

        • Question
          Is this modem compatible with Linksys EA6900 router?   (5 Answers)

          By bcobrwc February 16, 2016.

          Answers
          • Best 
            Answer

            no reason why it wouldn't be ! ...you might want to beef up your router to match max speeds is all.

            By mossman April 22, 2016.

          • Question
            Will this modem work with Mediacom Xfinity?   (2 Answers)

            By mediacom August 17, 2016.

            Answers
            • Best 
              Answer

              I have it on my Mediacom connection now.

              By Ready April 7, 2017.

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              • My Best Buy® Member
          • Question

            Will this modem work if you have Cox Cable Services?

            By Anonymous February 10, 2016.

            Closed to new Answers

            Answers
            • Best 
              Answer

              Yes, using it with the Ultimate service. Works great.

              By BobJung April 29, 2016.

            • Question
              I have Magic Jack Phone service. Will trhis work ok?   (3 Answers)

              By Terry February 14, 2017.

              Answers
              • Best 
                Answer

                Yes, this will work with the Magic Jack Phone service.

                By CommunityAnswer February 14, 2017.

              • Question
                does it support AT&T u-verse?   (2 Answers)

                By Anonymous July 7, 2016.

                Answers
                • Best 
                  Answer

                  If your AT&T U-Verse is setup like mine was (Ethernet cable input), then NO. This modem uses coaxial cable input, rather than Ethernet. However, the folks at Best Buy can direct you to the best option. I do know that they carry one from NetGear that works with AT&T U-Verse because I had one before I switched. It worked great, but AT&T issues and rising costs drove me away. I was told by AT&T dude that they already had a modem to my house in the proprietary box outside mounted on my house (the one with the secret squirrel lock and warning not to access it). That said, my modem appeared to work, but I wondered whether it really served much purpose. You may want to talk with them since maybe that can impact what you buy.

                  By MariettaDave July 16, 2016.

                • Question
                  Is CM600 compatible with Dish TV?   (0 Answers)

                  By Pdid August 8, 2017.

                • Question
                  Does this work with Spectrum?   (4 Answers)

                  By SmoothNYC July 31, 2017.

                  Answers

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