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HDTV_Guy's avatar
HDTV_Guy
Contributor
5 years ago
Solved

Erratic cable modem power levels

My Arris SB6183 status page is showing very erratic levels during the day and every 24hr. As you can imagine, speed test (wired and wireless) are inconsistent. I'm also seeing the same fluctuation in my TV signals.

This just started about 7 days ago. I've had no problem for over a year so I dont know why now there is a problem. All equipment physically looks good (tight connections, etc) I actually removed all splitters a test and that did not help the day to day fluctuations. Reset on cable mode did not help. Does this look like a in-house cable or equipment problem?

Lock Status Modulation Channel ID Frequency Power SNR Corrected Uncorrectables 
Locked QAM256 22 909000000 Hz -18.1 dBmV 30.7 dB 669518 151 
Locked QAM256 2 789000000 Hz -7.6 dBmV 38.2 dB 1 0 
Locked QAM256 3 795000000 Hz -9.3 dBmV 37 dB 1 0 
Locked QAM256 4 801000000 Hz -12 dBmV 35.3 dB 0 0 
Locked QAM256 5 807000000 Hz -11.9 dBmV 35.4 dB 0 0 
Locked QAM256 6 813000000 Hz -12.1 dBmV 35.3 dB 0 0 
Locked QAM256 7 819000000 Hz -13.1 dBmV 34.6 dB 3 0 
Locked QAM256 8 825000000 Hz -13.5 dBmV 34.2 dB 5 0 
Locked QAM256 17 879000000 Hz -26.6 dBmV 24.1 dB 4654241 5934196 
Locked QAM256 18 885000000 Hz -20 dBmV 28.4 dB 8391245 10779212 
Locked QAM256 19 891000000 Hz -17.6 dBmV 31.2 dB 2143555 16208 
Locked QAM256 20 897000000 Hz -21.6 dBmV 27.7 dB 15014437 169095 
Locked QAM256 21 903000000 Hz -22.5 dBmV 27.2 dB 40747128 585336 
Locked QAM256 1 783000000 Hz -8.7 dBmV 37.6 dB 0 0 
Locked QAM256 23 915000000 Hz -15.7 dBmV 33 dB 59255 1 
Locked QAM256 24 921000000 Hz -17.2 dBmV 31.7 dB 991071 35848 
Later in the day
Locked QAM256 1 783000000 Hz 1.2 dBmV 39.9 dB 0 0
Locked QAM256 2 789000000 Hz 1.1 dBmV 39.9 dB 0
Locked QAM256 3 795000000 Hz 2.1 dBmV 40.1 dB 0 0
Locked QAM256 4 801000000 Hz 2 dBmV 40 dB 0 0
Locked QAM256 5 807000000 Hz 1.3 dBmV 39.9 dB 0 0
Locked QAM256 6 813000000 Hz 0.5 dBmV 39.8 dB 0 0
Locked QAM256 7 819000000 Hz 0.9 dBmV 39.8 dB 0 0
Locked QAM256 8 825000000 Hz 0.7 dBmV 39.7 dB 0 0
Locked QAM256 17 879000000 Hz -2 dBmV 39.1 dB 0 0
Locked QAM256 18 885000000 Hz -2.4 dBmV 39 dB 0 0
Locked QAM256 19 891000000 Hz -2.8 dBmV 39 dB 0 0
Locked QAM256 20 897000000 Hz -3.3 dBmV 38.9 dB 0 0
Locked QAM256 21 903000000 Hz -3.7 dBmV 38.7 dB 0 0
Locked QAM256 22 909000000 Hz -3.3 dBmV 38.8 dB 0 0
Locked QAM256 23 915000000 Hz -3.3 dBmV 38.8 dB 0 0
Locked QAM256 24 921000000 Hz -3.5 dBmV 38.6 dB 0 0

  • HDTV_Guy's avatar
    HDTV_Guy
    5 years ago

    Yikes...signals are getting worse over the past 24hours. 

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  • HDTV_Guy's avatar
    HDTV_Guy
    Contributor
    5 years ago

    Yikes...signals are getting worse over the past 24hours. 

    • KevinM2's avatar
      KevinM2
      Former Moderator
      5 years ago
      I'm honestly uncertain what could be causing this issue. From my end, it looks like noise. Our best course of action would be to send out another service technician to investigate this further. -Kevin M. Cox Support Forum Moderator
      • HDTV_Guy's avatar
        HDTV_Guy
        Contributor
        5 years ago

        Tech scheduled for Thursday. Maybe the last tech missed something. He did remove all the filters and place 1 at the house entry point.

        Another point...usually I was seeing good signals for about 6-8 hours then go bad. Now after the tech visit, I seeing constantly bad signals...I haven't seen any good signals since his visa last week. To me, that tells me something internal to my house?? 

  • Allan's avatar
    Allan
    Moderator
    5 years ago
    @HDTV_Guy, The modem is reporting poor signals at this time. Since you have already checked your connections and tested without splitters, I recommend having a tech come out and take a look. Please send us an email with your full name, address, and a link to this thread to cox.help@cox.com so we can schedule the tech appointment on your behalf. Thanks. -Allan, Cox Support Forums Moderator
    • HDTV_Guy's avatar
      HDTV_Guy
      Contributor
      5 years ago

      So your initial conclusion is that there is something between the pole and modem that would cause this level of daily power fluctuation? I just dont want to waste anyone's time if it turns out to be something from the pole to back office.

      • Allan's avatar
        Allan
        Moderator
        5 years ago
        @HDTV_Guy, The tech will be able to determine where the issue is at. If it is down the line, the tech will submit a ticket to our maintenance team to address the situation. -Thanks. -Allan, Cox Support Forums Moderator.
  • HDTV_Guy's avatar
    HDTV_Guy
    Contributor
    5 years ago

    Tech came out and determined there is nothing wrong with the house equipment. He closed my ticket and said he needed to open up a ticket to have the "tap" looked at. Not sure how I can follow this ticket or when this will be completed. Meanwhile, I continue to have poor signal performance which is effecting internet, phone, and TV.

    • HDTV_Guy's avatar
      HDTV_Guy
      Contributor
      5 years ago

      Unfortunately, another tech looked at the "backend" and all signals are within spec. Now I have 2 techs saying everything looks within spec but I continue to experience the exact same issues. Now, another tech is coming out again. Not sure how this tech will find or do anything different than the last. I fear I'm entering a circular technical support situation while I continue to have very poor performance. I would have hoped the 2 tech's could talk to each other to share their findings and come up with an alternative support plan.

      • KevinM2's avatar
        KevinM2
        Former Moderator
        5 years ago
        Hi @HDTV_Guy, we apologize for the negative experience. We had the Tap investigated further, and no plant problems or problems with the Tap have been reported. I am still seeing signal issues with your modem, and sending out another service technician is likely the best course of action that will lead to a resolution. Please make sure all cables are tightly secured and free of damage. This includes any splitters or amplifiers you may also have. Loose or damaged connections can invite unwanted signals into the cable lines, and cause Ingress. -Kevin M. Cox Support Forum Moderator
  • HDTV_Guy's avatar
    HDTV_Guy
    Contributor
    5 years ago

    Sure enough... I have a tech coming over today. Very frustrating. I can only assume that my phone modem is also showing good levels too. I see great levels on my cablecard device this morning as well. 

    There's no way the tech will do anything today with these level. I just hope that they crash in the next 2 hours.

    Anyone else have some ideas on how to troubleshoot fluctuating signal levels. 

    • HDTV_Guy's avatar
      HDTV_Guy
      Contributor
      5 years ago

      Here we go... signals slowly deteriorating 

    • HDTV_Guy's avatar
      HDTV_Guy
      Contributor
      5 years ago

      Dropping fast now... probably within spec right now but hope it drops more by the time the tech shows up. Perfect i