Forum Discussion

DaveEagles's avatar
DaveEagles
Tuning in
11 months ago

Slow Broadband - Afternoon and evenings

I have M350 fibre

Can anyone shed any light as to why in the mornings my broadband speed is OK e.g. 215mbps but from around 1500 onwards I get about 30mbps?

There is only my wife and myself connected, no kids gaming etc.

The timings of the slowdown though suggest some capacity issues at certain times of the day.

I've reset the router etc

Thanks in advance

  • jbrennand's avatar
    jbrennand
    11 months ago

    If it actually is a VM network "capacity" issue causig this it will be evident and show in a BQM - so can you set one up...

    Also is this only evident on wifi connections or do you see them at the same times on devices connected on ethernet cables? If you don't know, can you check on one to help diagnose whether it is just a wifi issue or it could be network connection/Hub related?

    Might also be worth checking for any "known issues".  Try the “free & automated” Service Status number - 0800 561 0061 - which usually gives the most up to date info. and tells you of more local issues and fix estimates, down to street cab/ postcode level.

    _______________________

    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

  • jbrennand's avatar
    jbrennand
    Very Insightful Person
    11 months ago

    If it actually is a VM network "capacity" issue causig this it will be evident and show in a BQM - so can you set one up...

    Also is this only evident on wifi connections or do you see them at the same times on devices connected on ethernet cables? If you don't know, can you check on one to help diagnose whether it is just a wifi issue or it could be network connection/Hub related?

    Might also be worth checking for any "known issues".  Try the “free & automated” Service Status number - 0800 561 0061 - which usually gives the most up to date info. and tells you of more local issues and fix estimates, down to street cab/ postcode level.

    _______________________

    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

      • jbrennand's avatar
        jbrennand
        Very Insightful Person
        11 months ago

        Will take 24h to develop the full picture... post back when you have that image (black out the  ip address).

  • DaveEagles's avatar
    DaveEagles
    Tuning in
    11 months ago

    Hi,

    The monitor has been running for around 22 hours, it has generated date but I have no idea what this means.

    • jbrennand's avatar
      jbrennand
      Very Insightful Person
      11 months ago

      OK no evidence of overutiliastion in your area - otherwise it would look like this....

      https://community.virginmedia.com/t5/Forum-Archive/Jitter-and-latency/m-p/4609932#M378967

      So its probable the issue is due to something specific to you (or a few users)  So to start to pin that down can you say whether your issues are only evident on wifi connections - or do you see them at the same times on devices connected on ethernet cables? If you don't know, can you check on one to help diagnose whether it is just a wifi issue or it could be network connection/Hub related?

      ]Lets look at you connection data too - do this.....

      In your browser’s URL box type in http://192.168.0.1 (or http://192.168.100.1 - if in modem mode) (DONT click these links) - and hit return. 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

  • DaveEagles's avatar
    DaveEagles
    Tuning in
    11 months ago

    Thanks again John,

    I'm not sure that I've done what you asked correctly.

    I could only see (1) Configure WiFi Network (2) Network Diagnostic Tool and (3) Modify Guest Network.

    I selected 2 and got this

    Your home network has a few problems.

     

     

     Checking Broadband Service

     Checking Ethernet Connections

     Checking WiFi Connections

    If you still think something is wrong, please check the following

    1              Gateway IPv4 address is valid.

    2              Your broadband connection is down.

    3              The temperature of your Hub 3.0 is normal.

    4              The device 9e:xxxxxxxxxxxx has low signal strength, please move it closer to Hub 3.0.

    5              The device 1c: xxxxxxxxxxxx has low signal strength, please move it closer to Hub 3.0.

    6              The device 8e: xxxxxxxxxxxx has low signal strength, please move it closer to Hub 3.0.

    7              The device 6a: xxxxxxxxxxxx has low signal strength, please move it closer to Hub 3.0.

    8              The device 8c: xxxxxxxxxxxx has low signal strength, please move it closer to Hub 3.0.

    9              Please place your WiFi device near the Hub 3.0.

    I think devices 4 to 8 are phones and IPads and we never notice if response is bad.

    My laptop isn't one of the devices above and its connected via WiFi probable 5 metres away with nothing in between the router.

  • DaveEagles's avatar
    DaveEagles
    Tuning in
    11 months ago

    Sorry I have just realised what info you asked for

    Downstream bonded channels

    Channel               Frequency (Hz) Power (dBmV)  SNR (dB)              Modulation        Channel ID

    1              331000000           4.1          38           256 qam               25

    2              139000000           2.5          37           256 qam               1

    3              163000000           2.5          38           256 qam               4

    4              171000000           2.5          37           256 qam               5

    5              195000000           2.5          37           256 qam               8

    6              203000000           2.2          38           256 qam               9

    7              227000000           2.5          38           256 qam               12

    8              235000000           2.5          38           256 qam               13

    9              243000000           2.7          38           256 qam               14

    10           251000000           2.9          38           256 qam               15

    11           259000000           3              38           256 qam               16

    12           267000000           3.2          38           256 qam               17

    13           291000000           3.7          38           256 qam               20

    14           299000000           4              38           256 qam               21

    15           307000000           4              38           256 qam               22

    16           315000000           3.9          38           256 qam               23

    17           323000000           4              38           256 qam               24

    18           339000000           4.1          38           256 qam               26

    19           347000000           4.3          38           256 qam               27

    20           355000000           4              38           256 qam               28

    21           363000000           4              38           256 qam               29

    22           371000000           3.5          38           256 qam               30

    23           387000000           3              38           256 qam               32

    24           491000000           4.6          38           256 qam               33

     

     

    Downstream bonded channels

    Channel               Locked Status    RxMER (dB)        Pre RS Errors      Post RS Errors

    1              Locked  38.9        152         88

    2              Locked  37.3        1308       97

    3              Locked  38.9        317         94

    4              Locked  37.6        346         65

    5              Locked  37.6        304         87

    6              Locked  38.6        334         89

    7              Locked  38.6        280         215

    8              Locked  38.9        187         177

    9              Locked  38.9        172         93

    10           Locked  38.9        221         73

    11           Locked  38.6        274         88

    12           Locked  38.6        158         98

    13           Locked  38.6        181         87

    14           Locked  38.9        188         110

    15           Locked  38.9        120         172

    16           Locked  38.6        216         145

    17           Locked  38.6        200         70

    18           Locked  38.9        228         86

    19           Locked  38.6        189         71

    20           Locked  38.9        150         91

    21           Locked  38.9        176         188

    22           Locked  38.9        173         95

    23           Locked  38.6        160         92

    24           Locked  38.6        232         70

  • DaveEagles's avatar
    DaveEagles
    Tuning in
    11 months ago

    Upstream bonded channels

    Channel               Frequency (Hz) Power (dBmV)  Symbol Rate (ksps)         Modulation        Channel ID

    1              36600000             42.2        5120       64 qam 11

    2              23600000             42.3        5120       64 qam 13

    3              30100000             42.3        5120       64 qam 12

    4              43099993             42.3        5120       64 qam 10

    5              49600019             42.3        5120       64 qam 9

     

     

    Upstream bonded channels

    Channel               Channel Type    T1 Timeouts       T2 Timeouts       T3 Timeouts       T4 Timeouts

    1              ATDMA                0              0              0              0

    2              ATDMA                0              0              0              0

    3              ATDMA                0              0              0              0

    4              ATDMA                0              0              0              0

    5              ATDMA                0              0              2              0

    • jbrennand's avatar
      jbrennand
      Very Insightful Person
      11 months ago

      What are connections like on ethernet cable connectred devices?

      Can you start from a clean sheet by doing this......

      ____________________

      Switch the Hub off and unplug it from the mains supply for five minutes. Whilst it's off, do a quick check that all of your coax and ethernet cable connections are in nice and "finger" tight - at the Hub and wall box and also at any connectors etc. Ensure there are no “unterminated cable loose ends. Disconnect all the connections and reconnect to be sure. Also check that the internal wiring is ok with no kinking or chaffing. When its light, check that all looks good with the outside cabling and wall box (no “staples, etc.,) piercing the cables.

      Then switch the Hub back on and leave ~5 minutes When all done, check back in the settings and ensure that the RS error counts and T3 errors have all reset to 0. Then check every hour or so to see if they start reappearing - they shouldn't. If they do (particularly the postRS and T3 ones) you have a problem (noise) that only a Tech visit will sort.
      Also check the Upstream QAM’s are all at 64

      • DaveEagles's avatar
        DaveEagles
        Tuning in
        11 months ago

        Thanks everyone for advice.

        I have tried a Speedtest from 2 different providers from a phone and IPad.

         

        Its looking like a laptop issue.

         



  • DaveEagles's avatar
    DaveEagles
    Tuning in
    11 months ago

    Network Log

    Time      Priority Description

    28/02/2024 16:01:48        notice   LAN login Success;CM-MAC=:xxxxxxxxxx:bb;CMTS-MAC=xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    28/02/2024 16:00:40        Warning!             LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    28/02/2024 13:40:14        critical   No Ranging Response received - T3 time-out;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    28/02/2024 10:32:5          Warning!             RCS Partial Service;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    28/02/2024 05:16:2          critical   No Ranging Response received - T3 time-out;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    27/02/2024 15:18:2          notice   LAN login Success;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    27/02/2024 15:16:52        Warning!             LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    27/02/2024 10:37:29        Warning!             RCS Partial Service;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    26/02/2024 19:24:15        notice   LAN login Success;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    26/02/2024 10:56:29        notice   DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062+voc-b.cm modified;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    26/02/2024 10:56:29        Error      DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    25/02/2024 03:35:52        critical   No Ranging Response received - T3 time-out;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    24/02/2024 13:43:37        Warning!             RCS Partial Service;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    24/02/2024 13:43:37        critical   SYNC Timing Synchronization failure - Loss of Sync;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    24/02/2024 13:42:4          Warning!             RCS Partial Service;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    24/02/2024 13:42:4          critical   SYNC Timing Synchronization failure - Loss of Sync;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    24/02/2024 10:56:35        Warning!             RCS Partial Service;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    24/02/2024 10:56:35        critical   SYNC Timing Synchronization failure - Loss of Sync;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    23/02/2024 17:28:56        Warning!             RCS Partial Service;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

    23/02/2024 17:28:52        critical   SYNC Timing Synchronization failure - Loss of Sync;CM-MAC= xxxxxxxxxx;CMTS-MAC= xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;