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orion651's avatar
orion651
Aspirant
Oct 06, 2020
Solved

cm1150v slow with xfinity

Firmware: v2.02.04 S.no: 5FV30577A110D model: CM1150V   Just bought this model to replace Xfinity modem. This modem is extremely slow and its get slower in afternoon and night. I connected direct...
  • orion651's avatar
    orion651
    Oct 14, 2020

    Hi Furrye38,

    I have done those setup already. Xfinity send config file twice but no luck. talk with Netgear tech and i ran fluke from Coexial cable to other line, there wan't any noise. Netgear tech send me another modem. I hooked up and ran speed test, it was about gig upstream and 50 down. It was faulty modem. I just replaced with new one..

FURRYe38's avatar
FURRYe38
Guru - Experienced User
Oct 06, 2020

Have the ISP check the signal and line quality UP to the modem. 

Be sure the ISP sends the configuration file and provisions the modem correctly.
Be sure there are no coax cable line splitters in the between the modem and ISP service box. 
Be sure your using good quality RG6 coax cable up to the modem. 
Be sure to power OFF the modem for 1 minute them back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853

  • orion651's avatar
    orion651
    Aspirant
    Oct 14, 2020

    Hi Furrye38,

    I have done those setup already. Xfinity send config file twice but no luck. talk with Netgear tech and i ran fluke from Coexial cable to other line, there wan't any noise. Netgear tech send me another modem. I hooked up and ran speed test, it was about gig upstream and 50 down. It was faulty modem. I just replaced with new one..

    • FURRYe38's avatar
      FURRYe38
      Guru - Experienced User
      Oct 15, 2020

      Glad a new modem fixed it. 

      Enjoy. :smileywink: