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dhaider's avatar
dhaider
Follower
Feb 07, 2020

AC1900 WiFi cable modem not connecting to upstream channels

Has anyone had the experience that the upstream light will start blinking after about 5 minutes of resetting?  I understand that this means the modem is not locking onto a upstream channel.   When checking the modem setting via the genie app it shows that all 4 channels are locked.

1 Reply

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User
    Feb 07, 2020

    Which CM or C series modem do you have? 

    Have the ISP check the signal and line quality UP to the modem. 
    Be sure there are not 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.