Forum Discussion

JonathanP's avatar
JonathanP
On our wavelength
27 days ago
Solved

RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;

On Monday, I upgraded to 1gig broadband with a virginmedia Hub5.

There's some weird looking errors in the network log....

19-02-2025 06:06:21    warning    DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;[removed];CM-QOS=1.1;CM-VER=3.1;
19-02-2025 06:06:21    notice    US profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 11 13.;[removed];CM-QOS=1.1;CM-VER=3.1;
19-02-2025 06:06:18    notice    REGISTRATION COMPLETE - Waiting for Operational status
19-02-2025 06:06:12    warning    RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;[removed];CM-QOS=1.1;CM-VER=3.1;
19-02-2025 06:06:12    warning    RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;[removed];CM-QOS=1.1;CM-VER=3.1;
19-02-2025 06:06:12    warning    Dynamic Range Window violation
19-02-2025 06:06:12    warning    REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;[removed];CM-QOS=1.1;CM-VER=3.1;
19-02-2025 06:06:12    warning    Dynamic Range Window violation
19-02-2025 06:06:12    warning    RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;[removed];CM-QOS=1.1;CM-VER=3.1;
19-02-2025 06:06:12    warning    Dynamic Range Window violation
19-02-2025 06:06:12    warning    Dynamic Range Window violation
19-02-2025 06:06:12    warning    RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;[removed];CM-QOS=1.1;CM-VER=3.1;
19-02-2025 06:06:06    notice    DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;[removed];CM-QOS=1.1;CM-VER=3.1;
19-02-2025 06:06:03    notice    TLV-11 - unrecognized OID;[removed];CM-QOS=1.1;CM-VER=3.1;
19-02-2025 06:06:01    warning    DHCP WARNING - Non-critical field invalid in response ;[removed];CM-QOS=1.1;CM-VER=3.1;
19-02-2025 06:05:59    notice    Honoring MDD; IP provisioning mode = IPv4
19-02-2025 06:05:49    critical    SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;[removed];CM-QOS=1.1;CM-VER=3.1;

[MOD EDIT: Personal and private information has been removed from this post]

  • Adduxi's avatar
    Adduxi
    27 days ago

    I don't think it's anything to worry about, besides that all happened within a minute looking at the log time stamps.  Also a quick search on 'tinternet shows this is not uncommon across all DOCIS modem's over the world.

  • Adduxi's avatar
    Adduxi
    Very Insightful Person
    27 days ago

    I don't think it's anything to worry about, besides that all happened within a minute looking at the log time stamps.  Also a quick search on 'tinternet shows this is not uncommon across all DOCIS modem's over the world.

    • Adduxi's avatar
      Adduxi
      Very Insightful Person
      26 days ago

      As an aside, if you can edit your original post, as your CM MAC address is visible.  It would really be best to redact this information.  I'm surprised the Board software didn't do this automatically.

  • mark133's avatar
    mark133
    Joining in
    25 days ago

    I wouldn't take "i don't think it's anything to worry about" as a solution. I wouldn't take that it's "not uncommon" "all over the world" as anything other than lack of interest. There are many security vulnerabilities in all virgins hubs so maybe someone on this forum could point us to someone who actually knows the answer to the questions and the meaning of these logs.

  • Adduxi's avatar
    Adduxi
    Very Insightful Person
    25 days ago

    I’ve yet to see any explanation of those messages over the past couple of years.  It’s been asked before a few times, and I was only pointing out it’s not specific to VM, but more to DOCIS modems. If I was to guess I’d say it was an upstream power issue as it’s normally around a channel change?  But having said that, the modem is supposed to change channels to cope with variable power and noise, no?