You can’t get top speed or unlimited data with your own modem.
Not sure about Comcast, but I have no issues with Cox. I'm getting 2.5Gbps with my own equipment (Ubiquiti UCI, which is $$$, but other cheaper modems also work).
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Not sure about Comcast, but I have no issues with Cox. I'm getting 2.5Gbps with my own equipment (Ubiquiti UCI, which is $$$, but other cheaper modems also work).