this post was submitted on 03 Apr 2025
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HomeNetworking, community based networking help

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Which piece of equipment needs to be changed? (zerobytes.monster)
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The original post: /r/homenetworking by /u/kjakcrew on 2025-04-03 19:06:34.

Hello all,

I spent over an hour on the phone with Xfinity as my Internet speeds are horrible. I pay for the Gigabit plan and could get 1,100 Mbps (I know I won't get that) but a speed test resulted in 39.24 Mbps downloads. After I unlugged and reconnected and had them reset everything, Xfinity says it's not their problem, it's likely my cable modem. I don't know if I believe that or not. I bought a cable modem a few years ago, so maybe. How can I test which piece of equipment (cable modem or wifi) is the issue before I go buy new stuff? Here's what I have and the speedtest results:

  • Xfinity Gigabit Internet 1,100 Mbps
  • Arris Surfboard S33
  • eeroPro 6E
  • Download 39.24 Mbps
  • Upload 21.80 Mbps
  • Ping 26 ms

Thanks, everyone.

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