Forum Discussion

SoonerDave's avatar
SoonerDave
New Contributor
3 years ago

SB8200 lost upstream bonded channels - power too low

For about one year now, I've had an Arris SB8200 cablemodem and Cox 300Mbps Internet tier, and this has worked esssentially flawlessly in that time. I've had Cox Internet even longer with very few is...
bonded upstream
sb8200
speed problem
JonathanJ's avatar
JonathanJ
Former Moderator
@SoonerDave

I apologize for any inconvenience this has caused. You mentioned rebooting the modem. Have you tried a factory reset? Check page 13 in the manual link provided www.cox.com/.../Arris_SB8200_user_guide.pdf. If you are still having the same issue we may need to schedule a technician visit. If so please email your account details to cox.help@cox.com.

Jonathan J
Cox Moderator
SoonerDave's avatar
SoonerDave
New Contributor
3 years ago

Yes hard reset changed nothing.

  • DavidA2's avatar
    DavidA2
    Former Moderator
    3 years ago
    @SoonerDave,

    I am sorry to hear that. Please feel free to email us to the email JJ sent you. We would be happy to schedule a service visit for you.

    David
    Cox Support Forum Moderator
    • SoonerDave's avatar
      SoonerDave
      New Contributor
      3 years ago

      I've talked more with local Cox techs and after considerable discussion they've scheduled a truck roll after my work time on Monday. Our pedestal is in the neighbor's yard and I've let them know Cox may be doing measurements in their yard then. 

      I'm not crazy about a service call, but I also can't justify tossing out a random $200 on a new cable modem, especially if there really is a legit signal issue that would explain the sudden speed drop. 

      FWIW, all the cabling in the attic was done by Cox years ago, so no homebrew connections or jury-rigging.