Forum Discussion

nhluhr's avatar
nhluhr
New Contributor II
5 years ago

Gigablast service, works after modem reset but ~daily gets capped to 10Mbps

I recently noticed frequent (daily) drops in my internet speed and now that I've been paying attention, I want to share the symptoms and get suggestions on what may be the best solution. It started...
  • nhluhr's avatar
    nhluhr
    5 years ago

    Hi, I just wanted to follow up to say thank you!  A technician came today and did some testing to determine my service cable needed grounding (it was a straight run all the way from pole to modem with no grounding blocks, terminals, or junctions) and a 'pad' to bring the Tx numbers into spec.  Ever since, the connection has been totally stable and reliable.  Problem solved!

Allan's avatar
Allan
Moderator
@NHluhr, The modem is reporting some poor signals on your upstream channels. Are there any splitters or signal amps on the cable line going to the modem? -Allan, Cox Support Forums Moderator.
nhluhr's avatar
nhluhr
New Contributor II
5 years ago

also seeing this error in the log now instead of the one I mentioned above:

""SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=. . ."

  • MaryF's avatar
    MaryF
    Former Moderator
    5 years ago
    Hi Nhluhr,

    We may need to set up a service appointment so that it could be further investigated. Please send us an email to cox.help@cox.com with your full name, account holder's name, street address and details of your issue or a link to your forum post.

    Mary
    Cox Support Forums Moderator
    • nhluhr's avatar
      nhluhr
      New Contributor II
      5 years ago

      Hi, I just wanted to follow up to say thank you!  A technician came today and did some testing to determine my service cable needed grounding (it was a straight run all the way from pole to modem with no grounding blocks, terminals, or junctions) and a 'pad' to bring the Tx numbers into spec.  Ever since, the connection has been totally stable and reliable.  Problem solved!

    • nhluhr's avatar
      nhluhr
      New Contributor II
      5 years ago

      Email sent, thanks!