Forum Discussion

mattymatt1980's avatar
mattymatt1980
On our wavelength
2 years ago

Errors and Timeouts

Just now, my internet started “buffering” on Netflix which it never does (I’m on the 1GB service, using a Hub 5) so thought I would check my logs and noticed lots of T3 errors and critical messages. Can someone pls explain what I need to do as I don’t understand it. I was getting T3 errors before and when I rebooted they all went away but slowly creep back in. I have a broadband monitor set up which I have attached as well as the logs. Please advise accordingly. Logs on messages below. Thanks all.  

https://www.thinkbroadband.com/broadband/monitoring/quality/share/88b2215f41ff6a289f376f4055dd348faeb56a02

  • mattymatt1980's avatar
    mattymatt1980
    On our wavelength

    3.0 Downstream channels

    Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
    11470000006.240QAM 2562
    21390000006.140QAM 2561
    31550000006.140QAM 2563
    4163000000640QAM 2564
    51710000005.740QAM 2565
    61790000005.840QAM 2566
    71870000005.840QAM 2567
    81950000006.140QAM 2568
    92030000005.840QAM 2569
    10211000000640QAM 25610
    112190000005.840QAM 25611
    122270000005.740QAM 25612
    132350000005.740QAM 25613
    142430000005.640QAM 25614
    152510000005.540QAM 25615
    162590000005.440QAM 25616
    172670000005.640QAM 25617
    182750000005.540QAM 25618
    192830000005.740QAM 25619
    202910000005.540QAM 25620
    212990000006.240QAM 25621
    223070000006.640QAM 25622
    23315000000741QAM 25623
    243230000006.641QAM 25624
    253630000006.241QAM 25625
    263710000006.140QAM 25626
    27379000000640QAM 25627
    283870000006.340QAM 25628
    293950000006.141QAM 25629
    304030000006.141QAM 25630
    314110000005.541QAM 25631

    3.0 Downstream channels

    Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
    1Locked401513125452613
    2Locked401210319459351
    3Locked401415268302629
    4Locked401329901133803
    5Locked40240447582057
    6Locked40358974937201
    7Locked4078844041116
    8Locked4039714938345
    9Locked4032923826694
    10Locked4028798034659
    11Locked4025645825120
    12Locked4024891228550
    13Locked4027760530296
    14Locked4020096022047
    15Locked4021594329287
    16Locked4014953220117
    17Locked4012683920063
    18Locked4013514726522
    19Locked409499315124
    20Locked4010874725908
    21Locked408240619569
    22Locked406159919055
    23Locked416664523592
    24Locked415935220947
    25Locked414738419837
    26Locked404496321044
    27Locked404353222478
    28Locked404225224790
    29Locked414518927568
    30Locked414217025364
    31Locked413370218968

    3.1 Downstream channels

    Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
    159944K1840QAM 40961108

    3.1 Downstream channels

    Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)
    159Locked412.238304321622987
     
  • mattymatt1980's avatar
    mattymatt1980
    On our wavelength

    3.0 Upstream channels

    Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
    049600000475120QAM 321
    14310000046.85120QAM 322
    236600000475120QAM 323
    330100000475120QAM 324
    42360000046.85120QAM 325

    3.0 Upstream channels

    Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
    0ATDMA02720
    1ATDMA02900
    2ATDMA02720
    3ATDMA02720
    4ATDMA02720

    3.1 Upstream channels

    Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation
    61041.02KQAM 256

    3.1 Upstream channels

    Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts
    6OFDMA20074000000120
     
  • mattymatt1980's avatar
    mattymatt1980
    On our wavelength

    Network Log

    Time Priority Description
    08-11-2023 20:14:53noticeCM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:30noticeCM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:24critical16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:24criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:24criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:24criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:24criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:24critical16 consecutive T3 timeouts while trying to range on upstream channel 0;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:24critical16 consecutive T3 timeouts while trying to range on upstream channel 4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:24criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:24criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:24critical16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:24criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:12critical16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:12criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:12criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:01criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:13:00noticeCM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:12:54criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 20:12:45noticeUS 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;
    08-11-2023 20:12:45warningDBC-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;
    08-11-2023 19:53:44noticeUS 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;
    08-11-2023 19:53:44warningDBC-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;
    08-11-2023 19:43:39noticeUS 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;
    08-11-2023 19:43:39warningDBC-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;
    08-11-2023 19:33:33warningDBC-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;
    08-11-2023 19:33:33noticeUS 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;
    08-11-2023 19:26:38criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 19:26:38criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 19:26:38critical16 consecutive T3 timeouts while trying to range on upstream channel 4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 19:26:18criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    08-11-2023 19:26:18critical16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
     
    • Chris_W1's avatar
      Chris_W1
      Forum Team

      I have checked the area Matt and can confirm that there is an SNR outage and this is due to be resolved on the 15th November 2023 - The fault ref is F011016336 - Chris. 

  • mattymatt1980's avatar
    mattymatt1980
    On our wavelength

    Thanks for this. I have still been experiencing internet blackouts and buffering. I was watching Netflix last night and all of a sudden it started buffering for ages then an error message came up to say I had been disconnected from the internet. It took a while to reconnect afterwards.  Today, the same happened on YouTube. I looked at the Hub5 and it was flashing red. It did reconnect itself after about 10 mins but it becoming a nuisance now. I do think something is not quite right with the Hub. An engineer came out a while ago due to the same issues but didn’t really do much. He said he didn’t know why it kept timing out or losing internet. Can someone please look into this as it’s getting frustrating now. Many thanks. 

  • mattymatt1980's avatar
    mattymatt1980
    On our wavelength

    I’ve just checked the upload log again and getting consistent T3 errors again??

     

    Network Log

    Time Priority Description
    19-11-2023 10:35:43critical16 consecutive T3 timeouts while trying to range on upstream channel 3;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:35:43criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:35:43criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:35:23criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:35:23criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:35:23critical16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:35:03criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:35:03criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:35:03critical16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:34:43criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:34:43critical16 consecutive T3 timeouts while trying to range on upstream channel 0;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:32:43criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:32:23critical16 consecutive T3 timeouts while trying to range on upstream channel 4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:32:23criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:31:24criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:16:04noticeUS 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;
    19-11-2023 10:16:04warningDBC-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;
    19-11-2023 10:15:09noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:15:09warningDBC-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;
    19-11-2023 10:15:06noticeREGISTRATION COMPLETE - Waiting for Operational status
    19-11-2023 10:14:59warningDynamic Range Window violation
    19-11-2023 10:14:59warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:14:59warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:14:59warningREG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:14:59warningDynamic Range Window violation
    19-11-2023 10:14:59warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:14:59warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:14:59warningDynamic Range Window violation
    19-11-2023 10:14:59warningDynamic Range Window violation
    19-11-2023 10:14:54noticeDS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:14:47warningDHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    19-11-2023 10:14:45noticeHonoring MDD; IP provisioning mode = IPv4
  • jpeg1's avatar
    jpeg1
    Alessandro Volta

    Check on 0800 561 0061 to see if a fault is still reported in your area.

    Your problems are due to a lot of noise on the signal. This is due to a fault either outside on the network, or inside your house. Check that all your coax connections are done up tight. 

    • mattymatt1980's avatar
      mattymatt1980
      On our wavelength

      Just called the number and it says there are no issues with broadband in my area. Could this be due to a faulty Hub? All my wires are in tight.  I’ve rebooted many times and it settles down but then creeps back up again. Don’t seem to be getting anywhere. Last engineer that came out didn’t really seem to know what he was doing and told me to unplug my Ethernet cables for a few days and then plug them back in, which didn’t make any difference. 

      • Gareth_L's avatar
        Gareth_L
        Forum Team

        Hello mattymatt1980,

        Thank you very much for joining our Community.
        Can I just apologise for continued issues with your broadband connection
        We can run a few tests from here and check on your equipment.
        Sadly its not showing anything wrong, So I will need to send you a private message to gain account access and run further tests.
        If you can check the envelope top right of your screen that would be great. 
        Regards     
        Gareth_L