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Daesania's avatar
Mar 03, 2023

Orbi CBR750 random outages

Not consistent but at random times I'm losing internet connection.  The connection does NOT drop on the modem/router though, it still shows the status up.  ISP has come out multiple times (4th was today).  These "blips" as I'm calling them were happening every 5 minutes, almost exactly.  They came out, changed the hardware on the line, left. Still happening.  Came back again, said they see errors on the line from the street level connection and schedule an appointment with the street level tech.

Street level tech says they monitored connection for an hour and see no issues, recommended a replacement line from house box ISP connection to inside of house. They do that today and yet the issue persists.. just differently.  Instead of every 5 minutes for only 5 seconds, its once an hour for 2-3 minutes.

Of the repeated errors on the event log, these seem to happen the most:
Mar 03 2023 14:56:15Warning (5)DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value
Mar 03 2023 14:56:15Warning (5)RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW
Mar 03 2023 14:56:15Notice (6)US profile assignment change. US Chan ID: 6

24 Replies

  • Does the front LED turn PINK or any of the modem UP or Down LEDs give an AMBER light?

     

    What Firmware version is currently loaded?
    Please post a copy and paste of the modems connection status and event log page.
    https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
    https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-router

     

    Have the ISP check the signal and line quality UP to the modem. Be sure the ISP 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. 
    Start with removing any amplifiers, signal attenuators, or splitters from the coax.
    From there check the line for kinks, damage, moisture in the line.
    Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
    Be sure to power OFF the modem for 1 minute then back ON.
    https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
    https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
    https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html

    • Daesania's avatar
      Daesania
      Star

      A lot of this info was already in my post but i'll post it again.. No there is no color on the orbi.  Status lights show up.
      The firmware is current, there are no updates available.

      Techs have checked the line and it says fine both inside and at the street level box.
      Yes there is a splitter, the line splits between my cable box and my modem router.

      The line and the splitter are brand new as of today.
      The modem has been powered on/off many many times and cycled many many times.

      I cannot paste the log currently.  It does this sometimes where the log appears blank and will show up later.  The errors in my original post are the same errors that show up around the downtime.



      Startup Procedure
      ProcedureStatusComment
      Acquire Downstream Channel951000000 HzLocked
      Connectivity StateOkOperational
      Boot StateOkOperational
      SecurityEnabledBPI+
      IP Provisioning ModeHonor MDDhonorMdd(4)

      Downstream Bonded Channels
      ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectable
      1LockedQAM 2561783000000 Hz-3.7 dBmV37.3 dB10
      2LockedQAM 2562789000000 Hz-3.5 dBmV37.3 dB10
      3LockedQAM 2563795000000 Hz-3.7 dBmV37.6 dB10
      4LockedQAM 2564801000000 Hz-3.7 dBmV37.6 dB220
      5LockedQAM 2565807000000 Hz-3.7 dBmV37.3 dB80
      6LockedQAM 2566813000000 Hz-4.0 dBmV37.6 dB20
      7LockedQAM 2567819000000 Hz-4.0 dBmV37.3 dB10
      8LockedQAM 2568825000000 Hz-4.2 dBmV37.6 dB10
      9LockedQAM 2569831000000 Hz-3.9 dBmV37.6 dB10
      10LockedQAM 25610837000000 Hz-3.7 dBmV37.6 dB60
      11LockedQAM 25611843000000 Hz-4.2 dBmV37.6 dB140
      12LockedQAM 25612849000000 Hz-4.2 dBmV37.3 dB10
      13LockedQAM 25613855000000 Hz-4.5 dBmV37.6 dB10
      14LockedQAM 25614861000000 Hz-4.5 dBmV37.3 dB00
      15LockedQAM 25615867000000 Hz-4.9 dBmV37.3 dB00
      16LockedQAM 25616873000000 Hz-5.0 dBmV36.3 dB00
      17LockedQAM 25617879000000 Hz-5.2 dBmV37.3 dB00
      18LockedQAM 25618885000000 Hz-5.5 dBmV36.6 dB00
      19LockedQAM 25619891000000 Hz-5.9 dBmV36.6 dB00
      20LockedQAM 25620897000000 Hz-5.9 dBmV36.6 dB10
      21LockedQAM 25621903000000 Hz-5.5 dBmV36.3 dB00
      22LockedQAM 25622909000000 Hz-5.2 dBmV36.6 dB10
      23LockedQAM 25623915000000 Hz-5.0 dBmV36.6 dB00
      24LockedQAM 25624921000000 Hz-4.7 dBmV37.3 dB00
      25LockedQAM 25625927000000 Hz-4.5 dBmV36.6 dB00
      26LockedQAM 25626933000000 Hz-4.5 dBmV37.0 dB00
      27LockedQAM 25627939000000 Hz-4.0 dBmV36.6 dB00
      28LockedQAM 25628945000000 Hz-3.9 dBmV36.6 dB00
      29LockedQAM 25629951000000 Hz-3.0 dBmV36.6 dB50
      30LockedQAM 25630957000000 Hz-2.5 dBmV37.3 dB220
      31LockedQAM 25631963000000 Hz-4.5 dBmV35.7 dB10
      32LockedQAM 25632969000000 Hz-9.5 dBmV34.4 dB420

      Upstream Bonded Channels
      ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
      1LockedATDMA12560 Ksym/sec12600000 Hz40.3 dBmV
      2LockedATDMA22560 Ksym/sec15900000 Hz40.8 dBmV
      3LockedATDMA35120 Ksym/sec20700000 Hz41.0 dBmV
      4LockedATDMA45120 Ksym/sec27100000 Hz41.8 dBmV
      5Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV
      6Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV
      7Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV
      8Not LockedN/AUnknown0 Ksym/sec0 Hz0.0 dBmV

      Downstream OFDM Channels
      ChannelLock StatusModulation/Profile IDChannel IDFrequencyPowerSNR/MERActive Subcarrier
      Number Range
      Unerrored
      Codewords
      Correctable
      Codewords
      Uncorrectable
      Codewords
      1Locked3159300000000 Hz-1.0 dBmV43.8 dB2216~5975000
      2Not Locked000 Hz0.0 dBmV0.0 dB0~4095000

      Upstream OFDMA Channels
      ChannelLock StatusModulation/Profile IDChannel IDFrequencyPower
      1Locked0627200000 Hz25.8 dBmV
      2Not Locked000 Hz0.0 dBmV
      • FURRYe38's avatar
        FURRYe38
        Guru

        Please copy and paste the event log into a word doc then save off as a PDF then use the Choose File button on your next post to attach it. 

         

        Who is your ISP? 

         

        I see power levels are all over the place and mostly on the low side thought with in spec, channel 32 is -9db and is just too low:

        https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router

        I recommend removing the splitter temporarily to see if the power comes up and the Correctables and Un-Correctables can get to all zeros.