I have 1Gig broadband installed at home with a Hub 5 and generally get great speeds. However, every time I run a speed test using the Ookla Speedtest app, before the test begins, I see a yellow circle with a message indicating that my internet connection may be unstable. This issue has persisted for months. Previously, the indicator was green, and everything worked perfectly.The impact of this "unstable" connection is significant:Teams and Zoom calls are frequently unstable.My iPhone cannot back up to iCloud due to "network quality issues."My Windows 11 laptop reports that the network is unstable.Interestingly, when I use my phone and laptop at friends' or family members' homes, they work flawlessly, and speed tests at these locations show no issues.Virgin Media has already taken several steps to address this:Replaced the Hub three times.Swapped internal cabling in the house.Replaced the cabling from the cabinet to my house.Unfortunately, the problem persists, and I am convinced the issue lies somewhere in the network itself. Despite repeated attempts to resolve this with Virgin Media, I am no closer to a solution.Has anyone else experienced a similar issue and, if so, found a fix? Any advice or guidance would be greatly appreciated.Thank you!

Lets see the connection data - can you do this..._______________________Post up your Hub/network connection details in the format below and someone will check to see if there is a problem there. In your browser’s URL type in 192.168.0.1 if in router mode or 192.168.100.1 if in modem mode. No need to log in - just click on the “Router Status” icon/text at bottom-middle (Hub3/4/5) or top/right (SH’s) - of the Login page.Then… Navigate to these “data pages” and just copy/paste the normal “Formatted Text” (not images) 3 FULL sets of data onto here – 2 tables from the Downstream, 2 from the Upstream, & the Network Logs pages. Don't worry too much about the formatting it can be easily read & DON’T include personal data or MAC addresses - blank them out - if you copy/paste the data, the board software will do this for you (you may need to click the "submit" button again). If character limits are “exceeded” - just do two postsAlso, If you haven’t already, set up a free, secure and “offlsite” - “Broadband Quality Monitor” to continually monitor the state of your connection and record any true network dropouts , latency issues, packet drops, etc - it will thus allow you to differentiate between those and simple wifi dropouts. It does it 24/7/365 and it keeps a visual record of any/all of your network disconnections, useful data to have to match to the Network logs (in your Hub settings) and also in discussions with VM - note it will take a few hours to start seeing a sensible picture - post up the “link” to the “share live graph”. Click the lower link (Share Live Graph) then, click generate. Copy the text in the Direct Link box, beware, there may be more text than you can see. On here click the Link icon (2 links chain to the left of the camera icon) In the URL box paste the link you copied and then click OKhttps://www.thinkbroadband.com/broadband/monitoring/quality

Try another speed test :https://www.samknows.com/realspeed/https://speed.cloudflare.com/

Hi JohnThanks for the message. I think this is what you need. It looks a tonne of data but here goes ....3.0 Downstream channelsChannel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID1 411000000 8.1 38 QAM 256 12 435000000 7.7 39 QAM 256 43 443000000 7.8 39 QAM 256 54 467000000 7.9 39 QAM 256 85 475000000 8 39 QAM 256 96 483000000 8.2 39 QAM 256 107 491000000 8 39 QAM 256 118 499000000 8.1 39 QAM 256 129 507000000 7.8 39 QAM 256 1310 515000000 8.2 39 QAM 256 1411 523000000 7.9 39 QAM 256 1512 531000000 8.4 39 QAM 256 1613 539000000 8.1 39 QAM 256 1714 563000000 8.4 39 QAM 256 2015 571000000 8 39 QAM 256 2116 595000000 8.1 39 QAM 256 2417 603000000 7.7 39 QAM 256 2518 611000000 7.5 39 QAM 256 2619 619000000 7.2 39 QAM 256 2720 627000000 7.3 38 QAM 256 2821 635000000 7.4 39 QAM 256 2922 643000000 7.6 38 QAM 256 3023 651000000 7.8 38 QAM 256 3124 659000000 7.6 39 QAM 256 3225 667000000 8.1 39 QAM 256 3326 675000000 7.6 39 QAM 256 3427 683000000 8 39 QAM 256 3528 691000000 7.6 39 QAM 256 3629 699000000 7.9 39 QAM 256 3730 707000000 7.5 39 QAM 256 3831 715000000 7.6 39 QAM 256 3932 723000000 7.4 40 QAM 256 40 3.0 Downstream channelsChannel Locked Status RxMER (dB) Pre RS Errors Post RS Errors1 Locked 38 2400 02 Locked 39 67781 1021523 Locked 39 2778 04 Locked 39 3865 05 Locked 39 4188 06 Locked 39 10356 07 Locked 39 10995 08 Locked 39 5100 09 Locked 39 5845 010 Locked 39 8071 011 Locked 39 8447 012 Locked 39 4438 013 Locked 39 5375 014 Locked 39 7809 015 Locked 39 8474 016 Locked 39 8788 017 Locked 39 11294 018 Locked 39 12561 019 Locked 39 12337 020 Locked 38 18647 021 Locked 39 18109 022 Locked 38 18589 023 Locked 38 20727 024 Locked 39 21118 025 Locked 39 11724 026 Locked 39 9561 027 Locked 39 11551 028 Locked 39 10255 029 Locked 39 10231 030 Locked 39 15079 031 Locked 39 13097 032 Locked 40 9109 0 3.1 Downstream channels Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)159 94 4K 1840 QAM 4096 1108 3.1 Downstream channels Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)159 Locked 40 8.9 4058802920 25079 3.0 Upstream channels Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID0 49600000 43.5 5120 QAM 64 11 43100000 42.8 5120 QAM 64 22 36600000 42.8 5120 QAM 64 33 30100000 42.3 5120 QAM 64 44 23600000 41.8 5120 QAM 64 5 3.0 Upstream channels Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts0 ATDMA 0 0 0 01 ATDMA 0 0 0 02 ATDMA 0 0 0 03 ATDMA 0 0 0 04 ATDMA 0 0 0 0 3.1 Upstream channels Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation6 10 37.0 2K QAM 256 3.1 Upstream channels Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts6 OFDMA 200 74000000 32 2 Network LogTime Priority Description27-12-2024 00:19:30 notice US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;27-12-2024 00:19:30 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;27-12-2024 00:09:25 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;27-12-2024 00:09:25 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;26-12-2024 19:47:16 notice US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;26-12-2024 19:47:16 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;26-12-2024 19:37:16 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;26-12-2024 19:37:16 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;26-12-2024 17:25:53 notice US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;26-12-2024 17:25:53 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;26-12-2024 17:15:47 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;26-12-2024 17:15:47 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;26-12-2024 15:15:30 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;26-12-2024 10:37:54 notice GUI Login Status - Login Success from LAN interface25-12-2024 16:53:51 error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;24-12-2024 10:29:12 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;24-12-2024 10:29:12 notice US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;24-12-2024 10:19:05 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;24-12-2024 10:19:05 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;23-12-2024 20:12:43 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;23-12-2024 20:12:43 notice US profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;23-12-2024 20:02:34 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;23-12-2024 20:02:34 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;22-12-2024 04:53:50 error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;19-12-2024 22:26:08 notice US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;19-12-2024 22:26:08 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;19-12-2024 22:16:03 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;19-12-2024 22:16:03 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;18-12-2024 17:36:59 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;18-12-2024 16:53:49 error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;18-12-2024 08:13:33 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;18-12-2024 08:10:17 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;17-12-2024 18:20:39 warning DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;

Thanks Client62 for these links. The issue does not seem to be the speed. All devices are displaying errors eg: network quality or stability issues when connected to VM at home. When I take these devices to other locations, there are no issues at all.

3.1 seems to be an issue with errors in both up and downstream. I would say you need a proper network engineer to come take a look at the cable from your house to cabinet...

Persistent "Unstable Connection" Message with Hub 5 and 1Gig Broadband

12 Replies

jbrennand
Very Insightful Person
5 months ago
Lets see the connection data - can you do this...
_______________________
Post up your Hub/network connection details in the format below and someone will check to see if there is a problem there. In your browser’s URL type in 192.168.0.1 if in router mode or 192.168.100.1 if in modem mode. No need to log in - just click on the “Router Status” icon/text at bottom-middle (Hub3/4/5) or top/right (SH’s) - of the Login page.
Then… Navigate to these “data pages” and just copy/paste the normal “Formatted Text” (not images) 3 FULL sets of data onto here – 2 tables from the Downstream, 2 from the Upstream, & the Network Logs pages. Don't worry too much about the formatting it can be easily read & DON’T include personal data or MAC addresses - blank them out - if you copy/paste the data, the board software will do this for you (you may need to click the "submit" button again). If character limits are “exceeded” - just do two posts
Also, If you haven’t already, set up a free, secure and “offlsite” - “Broadband Quality Monitor” to continually monitor the state of your connection and record any true network dropouts , latency issues, packet drops, etc - it will thus allow you to differentiate between those and simple wifi dropouts. It does it 24/7/365 and it keeps a visual record of any/all of your network disconnections, useful data to have to match to the Network logs (in your Hub settings) and also in discussions with VM - note it will take a few hours to start seeing a sensible picture - post up the “link” to the “share live graph”. Click the lower link (Share Live Graph) then, click generate. Copy the text in the Direct Link box, beware, there may be more text than you can see. On here click the Link icon (2 links chain to the left of the camera icon) In the URL box paste the link you copied and then click OK
https://www.thinkbroadband.com/broadband/monitoring/quality
- Veggie_Guy
  Tuning in
  5 months ago
  Hi John
  Thanks for the message. I think this is what you need. It looks a tonne of data but here goes ....
  3.0 Downstream channels
  Channel            Frequency (Hz)             Power (dBmV)               SNR (dB)           Modulation      Channel ID
  1             411000000     8.1        38          QAM 256           1
  2             435000000     7.7        39          QAM 256           4
  3             443000000     7.8        39          QAM 256           5
  4             467000000     7.9        39          QAM 256           8
  5             475000000     8             39          QAM 256           9
  6             483000000     8.2        39          QAM 256           10
  7             491000000     8             39          QAM 256           11
  8             499000000     8.1        39          QAM 256           12
  9             507000000     7.8        39          QAM 256           13
  10          515000000     8.2        39          QAM 256           14
  11          523000000     7.9        39          QAM 256           15
  12          531000000     8.4        39          QAM 256           16
  13          539000000     8.1        39          QAM 256           17
  14          563000000     8.4        39          QAM 256           20
  15          571000000     8             39          QAM 256           21
  16          595000000     8.1        39          QAM 256           24
  17          603000000     7.7        39          QAM 256           25
  18          611000000     7.5        39          QAM 256           26
  19          619000000     7.2        39          QAM 256           27
  20          627000000     7.3        38          QAM 256           28
  21          635000000     7.4        39          QAM 256           29
  22          643000000     7.6        38          QAM 256           30
  23          651000000     7.8        38          QAM 256           31
  24          659000000     7.6        39          QAM 256           32
  25          667000000     8.1        39          QAM 256           33
  26          675000000     7.6        39          QAM 256           34
  27          683000000     8             39          QAM 256           35
  28          691000000     7.6        39          QAM 256           36
  29          699000000     7.9        39          QAM 256           37
  30          707000000     7.5        39          QAM 256           38
  31          715000000     7.6        39          QAM 256           39
  32          723000000     7.4        40          QAM 256           40
  
  3.0 Downstream channels
  Channel            Locked Status                RxMER (dB)     Pre RS Errors Post RS Errors
  1             Locked                38          2400    0
  2             Locked                39          67781 102152
  3             Locked                39          2778    0
  4             Locked                39          3865    0
  5             Locked                39          4188    0
  6             Locked                39          10356 0
  7             Locked                39          10995 0
  8             Locked                39          5100    0
  9             Locked                39          5845    0
  10          Locked                39          8071    0
  11          Locked                39          8447    0
  12          Locked                39          4438    0
  13          Locked                39          5375    0
  14          Locked                39          7809    0
  15          Locked                39          8474    0
  16          Locked                39          8788    0
  17          Locked                39          11294 0
  18          Locked                39          12561 0
  19          Locked                39          12337 0
  20          Locked                38          18647 0
  21          Locked                39          18109 0
  22          Locked                38          18589 0
  23          Locked                38          20727 0
  24          Locked                39          21118 0
  25          Locked                39          11724 0
  26          Locked                39          9561    0
  27          Locked                39          11551 0
  28          Locked                39          10255 0
  29          Locked                39          10231 0
  30          Locked                39          15079 0
  31          Locked                39          13097 0
  32          Locked                40          9109    0
  
  3.1 Downstream channels
  
  Channel            Channel Width (MHz)               FFT Type            Number of Active Subcarriers             Modulation (Active Profile)               First Active Subcarrier (Hz)
  159       94          4K          1840    QAM 4096        1108
  
  3.1 Downstream channels
  
  Channel ID      Locked Status                RxMER Data (dB)         PLC Power (dBmV)     Corrected errors (Active Profile)                Uncorrectable errors (Active Profile)
  159       Locked                40          8.9        4058802920   25079
  
  3.0 Upstream channels
  
  Channel            Frequency (Hz)             Power (dBmV)               Symbol Rate (ksps)    Modulation      Channel ID
  0             49600000        43.5     5120    QAM 64              1
  1             43100000        42.8     5120    QAM 64              2
  2             36600000        42.8     5120    QAM 64              3
  3             30100000        42.3     5120    QAM 64              4
  4             23600000        41.8     5120    QAM 64              5
  
  3.0 Upstream channels
  
  Channel            Channel Type T1 Timeouts    T2 Timeouts    T3 Timeouts    T4 Timeouts
  0             ATDMA               0             0             0             0
  1             ATDMA               0             0             0             0
  2             ATDMA               0             0             0             0
  3             ATDMA               0             0             0             0
  4             ATDMA               0             0             0             0
  
  3.1 Upstream channels
  
  Channel            Channel Width (MHz)               Power (dBmV)               FFT Type            Modulation
  6             10          37.0     2K          QAM 256
  
  3.1 Upstream channels
  
  Channel            Channel Type Number of Active Subcarriers             First Active Subcarrier (Hz)   T3 Timeouts                T4 Timeouts
  6             OFDMA              200       74000000        32          2
  
  Network Log
  Time     Priority                Description
  27-12-2024 00:19:30 notice US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  27-12-2024 00:19:30 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  27-12-2024 00:09:25 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  27-12-2024 00:09:25 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  26-12-2024 19:47:16 notice US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  26-12-2024 19:47:16 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  26-12-2024 19:37:16 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  26-12-2024 19:37:16 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  26-12-2024 17:25:53 notice US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  26-12-2024 17:25:53 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  26-12-2024 17:15:47 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  26-12-2024 17:15:47 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  26-12-2024 15:15:30 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  26-12-2024 10:37:54 notice GUI Login Status - Login Success from LAN interface
  25-12-2024 16:53:51 error     DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  24-12-2024 10:29:12 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  24-12-2024 10:29:12 notice US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  24-12-2024 10:19:05 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  24-12-2024 10:19:05 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  23-12-2024 20:12:43 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  23-12-2024 20:12:43 notice US profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  23-12-2024 20:02:34 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  23-12-2024 20:02:34 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  22-12-2024 04:53:50 error     DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  19-12-2024 22:26:08 notice US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  19-12-2024 22:26:08 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  19-12-2024 22:16:03 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  19-12-2024 22:16:03 notice US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  18-12-2024 17:36:59 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  18-12-2024 16:53:49 error     DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  18-12-2024 08:13:33 critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  18-12-2024 08:10:17 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
  17-12-2024 18:20:39 warning              DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=XX:XX:XX:XX:XX:XX;CMTS-MAC=XX:XX:XX:XX:XX:XX;CM-QOS=1.1;CM-VER=3.1;
Client62
Alessandro Volta
5 months ago
Try another speed test :

https://www.samknows.com/realspeed/

https://speed.cloudflare.com/
- Veggie_Guy
  Tuning in
  5 months ago
  Thanks Client62 for these links. The issue does not seem to be the speed. All devices are displaying errors eg: network quality or stability issues when connected to VM at home. When I take these devices to other locations, there are no issues at all.
fizz
Fibre optic
5 months ago
3.1 seems to be an issue with errors in both up and downstream. I would say you need a proper network engineer to come take a look at the cable from your house to cabinet...
- Veggie_Guy
  Tuning in
  5 months ago
  Thank you for your message. Could you clarify the issues so that I can raise them with Virgin Media customer service? Every time I contact them, I am told they are looking into it and will get back to me, but they never do. Any advice or specific points I can mention would be greatly appreciated.
  Thanks
Client62
Alessandro Volta
5 months ago
It is a reference to :

3.1 Downstream channels

Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)
159 Locked 40 8.9 4058802920 25079
Veggie_Guy
Tuning in
5 months ago
so are you referring to the number of uncorrectable errors ie 25079. Is this too high? What is specification?
Client62
Alessandro Volta
5 months ago
Zero would be a good target, as is mostly seen in the Post RS Errors of the 3.0 channels.

The real question is are the Uncorrectable Errors & Post RS Errors still rising i.e. does the noise fault still persist ?

Often when a new customer connection occurs we see a burst of errors logged on one day,
but after that the error numbers are stable i.e. the maintenance is over and the brief noise issue has passed.
- Veggie_Guy
  Tuning in
  5 months ago
  I have been a VM customer (miraculously) for over 20 years, and have had the 1G service for well over a year. Hence any new customer connection issues should have resolved by now? Just checked today and Uncorrectable errors (Active Profile) = 13050
  - Matthew_ML
    Forum Team
    5 months ago
    Hey Veggie_Guy, thank you for reaching out and I am so sorry to hear you are having some connection issues.
    
    I have taken a look and I can see your levels are very good and everything looks fine.
    
    How has the connection been since?

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