Forum Discussion

Chocks's avatar
Chocks
Joining in
11 hours ago

DBC-REQ Mismatch and US profile assignment change

Hi,

We are frequently getting disconnected from the internet and,  after a short while, we get reconnected again.

Looking at the network log on the Hub5 we see many entries for:

  • US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;
  • DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;

 

Can anyone advise what needs to be done to stop the disconnects? 

Thanks.

 
Broadband
Disconnects
Help

9 Replies

  • Tudor's avatar
    Tudor
    Very Insightful Person
    8 hours ago

    How to get stats from a VM hub (no need to logon to the hub)

    Open a web browser and go to 192.168.0.1 router mode or 192.168.100.1 modem mode

    • Click on the “> Check router status” button
    • Click on the “Downstream” tab, copy the text and paste into your reply, do not take a screen shot
    • Click on the “Upstream” tab, copy the text and paste into your reply
    • Click on the “Networking” tab, copy the text and paste into your reply.
      • Do NOT post photos or screen shots they will be rejected as they contain MAC addresses. The board software will automatically change MAC addresses to **:** if done as above.
  • Chocks's avatar
    Chocks
    Joining in
    7 hours ago

     

    ChannelFrequency (Hz)Power (dBmV)SNR (dB)ModulationChannel ID
    13310000001.140QAM 25625
    21390000007.541QAM 2561
    31470000006.941QAM 2562
    41630000005.641QAM 2564
    5171000000541QAM 2565
    6203000000441QAM 2569
    72270000003.440QAM 25612
    82350000003.341QAM 25613
    92590000002.541QAM 25616
    102670000002.441QAM 25617
    112750000002.240QAM 25618
    12283000000241QAM 25619
    132910000001.840QAM 25620
    142990000001.640QAM 25621
    153070000001.440QAM 25622
    163150000001.540QAM 25623
    173230000001.240QAM 25624
    183390000001.140QAM 25626
    193470000001.140QAM 25627
    20355000000141QAM 25628
    213630000000.840QAM 25629
    223710000000.940QAM 25630
    233790000000.640QAM 25631
    243870000000.540QAM 25632
    253950000000.240QAM 25633
    264030000000.140QAM 25634
    274110000000.240QAM 25635
    284190000000.440QAM 25636
    294270000000.940QAM 25637
    304350000000.940QAM 25638
    31443000000-140QAM 25639
    324510000000.540QAM 25640
  • Chocks's avatar
    Chocks
    Joining in
    7 hours ago
    ChannelLocked StatusRxMER (dB)Pre RS ErrorsPost RS Errors
    1Locked4000
    2Locked41212
    3Locked4100
    4Locked4100
    5Locked4100
    6Locked4100
    7Locked4000
    8Locked4100
    9Locked4100
    10Locked4100
    11Locked4000
    12Locked4100
    13Locked4000
    14Locked4000
    15Locked4000
    16Locked4000
    17Locked4000
    18Locked4000
    19Locked4000
    20Locked4100
    21Locked4000
    22Locked4000
    23Locked4000
    24Locked4000
    25Locked4000
    26Locked4000
    27Locked4000
    28Locked4010
    29Locked4020
    30Locked4000
    31Locked4020
    32Locked4030
  • Chocks's avatar
    Chocks
    Joining in
    7 hours ago

    3.0 Upstream

    ChannelFrequency (Hz)Power (dBmV)Symbol Rate (ksps)ModulationChannel ID
    04960000045.35120QAM 641
    14310000045.35120QAM 642
    236600000455120QAM 643
    33010000044.55120QAM 644
    423600000445120QAM 645
    ChannelChannel TypeT1 TimeoutsT2 TimeoutsT3 TimeoutsT4 Timeouts
    0ATDMA0000
    1ATDMA0000
    2ATDMA0000
    3ATDMA0000
    4ATDMA0000
  • Chocks's avatar
    Chocks
    Joining in
    7 hours ago

    3.1 Upstream

    ChannelChannel Width (MHz)Power (dBmV)FFT TypeModulation
    61039.02KQAM 256
    ChannelChannel TypeNumber of Active SubcarriersFirst Active Subcarrier (Hz)T3 TimeoutsT4 Timeouts
    6OFDMA20074000000322
  • Chocks's avatar
    Chocks
    Joining in
    7 hours ago

    Network Log

    TimePriorityDescription
    09-09-2025 21:18:47warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 21:18:47noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 19:38:04noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 19:38:04warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 19:27:56warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 19:27:56noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 19:06:21noticeGUI Login Status - Login Success from LAN interface
    09-09-2025 17:38:06noticeGUI Login Status - Login Success from LAN interface
    09-09-2025 16:46:26warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 16:46:26noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 16:36:18noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 16:36:18warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 11:33:44warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 11:33:44noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 11:23:40noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 11:23:40warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 11:13:34noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 11:13:34warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 11:03:29noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 11:03:29warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 09:42:51warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 09:42:51noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 09:32:47noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 09:32:47warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 08:12:12noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 08:12:12warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 08:02:04noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 08:02:04warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 07:11:41warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 07:11:41noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 01:08:35criticalReceived Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09-09-2025 01:05:19criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08-09-2025 18:42:35warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08-09-2025 18:42:35noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
  • Chocks's avatar
    Chocks
    Joining in
    7 hours ago

    Tudor - Thanks for those tips. Trouble posting due to HTML error.

  • Chocks's avatar
    Chocks
    Joining in
    7 hours ago

    BTW, I don't have a Networking Tab. I assume you meant Network Log.