Forum Discussion

mcissac1's avatar
mcissac1
Joining in
2 years ago
Solved

intermittent signal EH15

Hi, having issues with frequent signal drop outs, affecting both laptops and phones, and causing our work VPNs to drop out and video calls to freeze.

When I look at service status for our postcode it shows green - but when I go in and test the hub it says there are intermittent signal issues in our area, This has gone on for months. We're a couple of hundred metres from the cabinet. Please could someone advise whetherer there are plans to resolve this, as it seems to be a known issue? We've done frequent hub resets and it hasn't helped.

  •  Your realspeed shows 136 to your Hub, but only 16 to your device, so you will need to check this, as the Hub is getting full speed both up and down. (125 Tier?)

    Okay, the BQM looks not too bad.  There are too many T3 timeouts on the Upstream channel 1, and too many PostRS errors on the Downstream.  Normally this might indicate noise on the circuit and will need a VM tech to investigate and fix. 

    All you can do is check all the connections from the Hub to the outside box are at least "finger" tight and not corroded.  If you wait here a couple of days a VM Mod should pick this up and discuss with you.

    • mcissac1's avatar
      mcissac1
      Joining in

      Hi, thanks for the response, I set up a BQM yesterday and it can accessed at

      https://www.thinkbroadband.com/broadband/monitoring/quality/share/a562c7629ea23e2a36a7c56ccf5766b813e75428-16-01-2024

      SamKnows test says 

      Network Log

      Network Log

      Time Priority Description

      16/01/2024 18:06:28noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      16/01/2024 12:40:27criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      15/01/2024 22:14:19noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      15/01/2024 22:14:19ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      14/01/2024 06:27:41criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      12/01/2024 10:14:18noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      12/01/2024 10:14:18ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      10/01/2024 14:04:32criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 03:12:35Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 03:12:30Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 03:01:14Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 03:01:8Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 01:22:16criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 01:22:15Warning!B-INIT-RNG Failure - Retries exceeded;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 01:21:2criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 01:00:49criticalReceived Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 01:00:1Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 00:59:57criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 00:59:56Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
      09/01/2024 00:59:56criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
       
      • mcissac1's avatar
        mcissac1
        Joining in

        Router status

        Upstream bonded channels

        Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
        14310000040.5512064 qam2
        22360000042512064 qam5
        33010000040.5512064 qam4
        43660000040.5512064 qam3
        54960000040.5512064 qam1


        Upstream bonded channels

        Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
        1ATDMA00290
        2ATDMA0030
        3ATDMA0000
        4ATDMA0000
        5ATDMA0020

        Downstream bonded channels

        Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
        13310000007.440256 qam25
        22030000008.543256 qam9
        32110000008.540256 qam10
        42190000008.140256 qam11
        52270000007.640256 qam12
        62350000007.540256 qam13
        72430000007.340256 qam14
        8251000000740256 qam15
        9259000000740256 qam16
        102670000007.840256 qam17
        112750000007.940256 qam18
        122830000007.640256 qam19
        132910000007.540256 qam20
        142990000007.940256 qam21
        153070000007.640256 qam22
        163150000007.440256 qam23
        173230000007.540256 qam24
        183390000007.440256 qam26
        193470000007.440256 qam27
        20355000000740256 qam28
        213630000006.540256 qam29
        22371000000640256 qam30
        233790000004.638256 qam31
        243870000005.540256 qam32


        Downstream bonded channels

        Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
        1Locked40.395261
        2Locked43.385492
        3Locked40.981446
        4Locked40.942873
        5Locked40.9131879
        6Locked40.3103758
        7Locked40.3120921
        8Locked40.3611080
        9Locked40.942951
        10Locked40.9471066
        11Locked40.9521086
        12Locked40.9701254
        13Locked40.9451349
        14Locked40.3971269
        15Locked40.9431194
        16Locked40.9801335
        17Locked40.91271528
        18Locked40.9891424
        19Locked40.32221381
        20Locked40.3701250
        21Locked40.91931472
        22Locked40.3991483
        23Locked38.94791587
        24Locked40.979177
         
         
  • Let me know what else you need - please be specific and describe in plain english as this is the first time I have actully logged into the back end of the hub.

  • Adduxi's avatar
    Adduxi
    Very Insightful Person

     Your realspeed shows 136 to your Hub, but only 16 to your device, so you will need to check this, as the Hub is getting full speed both up and down. (125 Tier?)

    Okay, the BQM looks not too bad.  There are too many T3 timeouts on the Upstream channel 1, and too many PostRS errors on the Downstream.  Normally this might indicate noise on the circuit and will need a VM tech to investigate and fix. 

    All you can do is check all the connections from the Hub to the outside box are at least "finger" tight and not corroded.  If you wait here a couple of days a VM Mod should pick this up and discuss with you.

  • Thanks, that's all useful pointers, we're in a coastal area and been told anecdotally that local connections suffering from corrosion. Grateful if VM Mods/tech could get in touch when possible.

    • John_GS's avatar
      John_GS
      Forum Team

      Hi mcissac1 

      Thanks for posting and welcome back to the community.

      Sorry to hear of any broadband issues.

      You do need a tech visit so I'll send you a PM now to assist further.