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Xfinity 1200Mbps / 35 Mbps Arris S33 Wired on 300Mbps 2.5Gbps Port - S33

  • 18 November 2023
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Xfinity 1200Mbps /  35 Mbps Arris S33 Wired on 2.5Gbps Port - connected to a new Gaming Laptop with a 2.5Gbps port using a new Cat6 - speed test range from 500Mbps / 40Mbps to often only 300Mbps / 40Mbps. Xfinity came out and can’t figure it out. When they connect their own equipment to the coax direct their test show it’s a perfect connection and all signals and power levels are in perfect range…. Very frustrated, this is my second modem, my older one was working until it all of the sudden was no longer compatible with my plan (?) online support was also no help - I have spent hours trying to figure this out

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Best answer by SURFboard Moderator 21 November 2023, 04:18

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In this case we would suggest you to reach out Arris.com/consumersupport for further assistance if the modem is under warranty, since you have done with all possible trouble shooting already.