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djkid1985's avatar
djkid1985
Initiate
Jun 05, 2020

CM1150V - Slow speeds on Xfinity

I purchased a CM1150V modem to use with Xfinity Gig Internet. However, I'm not getting anywhere close to the right speeds. I have done troubleshooting with Xfinity:  Reset modem physically using th...
FURRYe38's avatar
FURRYe38
Guru - Experienced User
Jun 06, 2020

So do you get near 900Mpbs with a wired PC directly connected to the CM modem? 

 

What PC are you using for speed testing? 

  • djkid1985's avatar
    djkid1985
    Initiate
    Jun 06, 2020
    I have never gotten more than 300Mbps directly wired to the modem. I have tried both a Lenovo and a Dell laptop, as well as an iMac.

    I get the same speeds wired to the Netgear router, as well.
    • FURRYe38's avatar
      FURRYe38
      Guru - Experienced User
      Jun 07, 2020

      What are the model# of these PCs? 

      How old are these PCs?