Forum Discussion

mrBi0's avatar
mrBi0
On our wavelength
7 months ago

Unstable ping/latency & packet loss

Hi,

Like quite a few others, over the past few months my Gig1 connection has been suffering from periods of high latency & packet loss.  This doesn't really affect streaming, web browsing etc, but it totally kills any kind of competitive gaming.

I've tried factory resetting the router, reseating connections etc.  Nothing's worked.  Does anyone have any advice?

Todays graph so far:

Yesterday:

Saturday:

Some stats...

Item Status CommentsChannel Overview Downstream Upstream

Cable Modem Status
Online
DOCSIS 3.1
Primary downstream channel
Locked
SC-QAM
DOCSIS 3.0 channels
31
6
DOCSIS 3.1 channels
1
0

3.0 Downstream channels

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

25331000000-6.59999835.779911QAM25625
1139000000-6.09999835.595078QAM2561
2147000000-6.50000035.595078QAM2562
3155000000-6.70000135.595078QAM2563
4163000000-6.79999935.595078QAM2564
5171000000-6.79999935.595078QAM2565
6179000000-6.70000135.595078QAM2566
7187000000-6.40000235.595078QAM2567
8195000000-6.29999935.779911QAM2568
9203000000-6.09999835.779911QAM2569
10211000000-5.79999935.779911QAM25610
11219000000-5.70000135.595078QAM25611
12227000000-5.40000235.779911QAM25612
13235000000-5.29999935.779911QAM25613
14243000000-5.20000136.386890QAM25614
15251000000-5.20000135.779911QAM25615
16259000000-5.09999835.779911QAM25616
17267000000-5.40000235.779911QAM25617
18275000000-5.59999835.595078QAM25618
19283000000-5.90000235.779911QAM25619
20291000000-6.00000035.779911QAM25620
21299000000-5.59999835.779911QAM25621
22307000000-5.70000135.595078QAM25622
23315000000-6.00000035.779911QAM25623
24323000000-6.40000235.779911QAM25624
26339000000-6.59999835.779911QAM25626
27347000000-6.50000035.779911QAM25627
28355000000-6.50000035.779911QAM25628
29363000000-6.40000236.386890QAM25629
30371000000-6.29999936.386890QAM25630
31379000000-6.29999936.386890QAM25631

 

latency
packet loss
ping
  • mrBi0's avatar
    mrBi0
    On our wavelength
    7 months ago

    3.0 Downstream channels

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

    25Locked35.77991100
    1Locked35.59507800
    2Locked35.59507800
    3Locked35.59507800
    4Locked35.59507800
    5Locked35.59507800
    6Locked35.59507800
    7Locked35.59507800
    8Locked35.77991100
    9Locked35.77991100
    10Locked35.77991100
    11Locked35.59507800
    12Locked35.77991100
    13Locked35.77991100
    14Locked36.38689000
    15Locked35.77991100
    16Locked35.77991100
    17Locked35.77991100
    18Locked35.59507800
    19Locked35.77991100
    20Locked35.77991100
    21Locked35.77991100
    22Locked35.59507800
    23Locked35.77991100
    24Locked35.77991100
    26Locked35.77991100
    27Locked35.77991100
    28Locked35.77991100
    29Locked36.38689000
    30Locked36.38689000
    31Locked36.38689000



    3.1 Downstream channels

    Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
    33964K1840QAM4096759


    3.1 Downstream channels

    Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
    33Locked40-3.5177180499210190
    • mrBi0's avatar
      mrBi0
      On our wavelength
      7 months ago

      3.0 Upstream channels

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

      13940000034.7705995120 KSym/sec64QAM4
      22360000035.7705995120 KSym/sec64QAM10
      33260000035.2705995120 KSym/sec64QAM9
      44620000034.2705995120 KSym/sec64QAM3
      55370000034.2705995120 KSym/sec64QAM2
      66030000034.7705995120 KSym/sec64QAM1



      3.0 Upstream channels

      Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

      1US_TYPE_ATDMA0000
      2US_TYPE_ATDMA0000
      3US_TYPE_ATDMA0000
      4US_TYPE_ATDMA0000
      5US_TYPE_ATDMA0000
      6US_TYPE_ATDMA0000

      Network Log

      Time Priority Description

      Mon Jul
      22      		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      Sun Jul
      21      		3Received 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;
      Thu Jul
      18      		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      Mon Jul
      15      		6CM-STATUS message sent. Event Type Code: 24; Chan ID: 33; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      Mon Jul
      15      		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      Fri Jul
      12      		3No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      Mon Jul
      		4DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
      Sat Jul
      		5MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
  • smithy01793's avatar
    smithy01793
    On our wavelength
    7 months ago

    On your downstream power levels. Are they always around  - 6.5. Also are you using a hub5. 

    If so that is the very bottom end of what VM Deam to be in the exceptable range.

    -7 to +10.

    Also as you can see from the quality monitors there is clearly a problem bud. 

    Get a VM tech out to level out your power levels firstly and go from there. 

    • mrBi0's avatar
      mrBi0
      On our wavelength
      7 months ago

      Yeah, it's a Hub 5 connected to a TV/broadband splitter, which then goes through 2 attenuators (3dB & 6dB) before connecting to the FTTP>coax box on my living room wall.

  • mrBi0's avatar
    mrBi0
    On our wavelength
    7 months ago

    I've removed the 6dB attenuator and now my power levels are a few decimals either side of 0...

     

    3.0 Downstream channels

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

    25331000000-0.59999836.386890QAM25625
    1139000000-0.29999935.779911QAM2561
    2147000000-0.59999835.779911QAM2562
    3155000000-0.79999935.779911QAM2563
    4163000000-0.79999935.779911QAM2564
    5171000000-0.90000235.595078QAM2565
    7187000000-0.59999835.779911QAM2567
    8195000000-0.50000035.779911QAM2568
    9203000000-0.20000135.779911QAM2569
    102110000000.20000136.386890QAM25610
    112190000000.29999936.386890QAM25611
    122270000000.50000036.386890QAM25612
    132350000000.70000136.386890QAM25613
    142430000000.79999936.386890QAM25614
    152510000000.70000136.386890QAM25615
    162590000000.79999936.609653QAM25616
    172670000000.59999836.386890QAM25617
    182750000000.20000136.609653QAM25618
    192830000000.00000036.609653QAM25619
    202910000000.00000036.386890QAM25620
    212990000000.40000236.386890QAM25621
    223070000000.09999836.386890QAM25622
    233150000000.00000036.609653QAM25623
    24323000000-0.29999936.386890QAM25624
    26339000000-0.70000136.609653QAM25626
    27347000000-0.50000036.386890QAM25627
    28355000000-0.50000036.609653QAM25628
    29363000000-0.40000236.609653QAM25629
    30371000000-0.40000236.386890QAM25630
    31379000000-0.29999936.386890QAM25631
    32387000000-0.20000136.609653QAM25632



    3.0 Downstream channels

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

    25Locked36.38689000
    1Locked35.77991100
    2Locked35.77991100
    3Locked35.77991100
    4Locked35.77991100
    5Locked35.59507800
    7Locked35.77991100
    8Locked35.77991100
    9Locked35.77991100
    10Locked36.38689000
    11Locked36.38689000
    12Locked36.38689000
    13Locked36.38689000
    14Locked36.38689000
    15Locked36.38689000
    16Locked36.60965300
    17Locked36.38689000
    18Locked36.60965300
    19Locked36.60965300
    20Locked36.38689000
    21Locked36.38689000
    22Locked36.38689000
    23Locked36.60965300
    24Locked36.38689000
    26Locked36.60965300
    27Locked36.38689000
    28Locked36.60965300
    29Locked36.60965300
    30Locked36.38689000
    31Locked36.38689000
    32Locked36.60965300



    3.1 Downstream channels

    Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
    33964K1840QAM4096759


    3.1 Downstream channels

    Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
    33Locked402.4147212370

     

  • mrBi0's avatar
    mrBi0
    On our wavelength
    7 months ago

    3.0 Upstream channels

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

    13940000028.5205995120 KSym/sec64QAM4
    22360000029.5205995120 KSym/sec64QAM10
    33260000029.0205995120 KSym/sec64QAM9
    44620000028.2705995120 KSym/sec64QAM3
    55370000028.2705995120 KSym/sec64QAM2
    66030000028.5205995120 KSym/sec64QAM1



    3.0 Upstream channels

    Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

    1US_TYPE_ATDMA0000
    2US_TYPE_ATDMA0000
    3US_TYPE_ATDMA0000
    4US_TYPE_ATDMA0000
    5US_TYPE_ATDMA0000
    6US_TYPE_ATDMA0000
    • mrBi0's avatar
      mrBi0
      On our wavelength
      6 months ago

      Doesn't look like it's made any difference...

       

      • Ayisha_B's avatar
        Ayisha_B
        Forum Team
        6 months ago

        Hi mrBi0 👋

        Welcome back to our Community Forums and thanks for your post.

        I am sorry for the issues with your Broadband. I can appreciate this isn't ideal.

        I've ran some checks for you and I can see there is a uptime issue. Your Hub hasn't been rebooted in 21 days. 

        Although designed to be constantly powered on, the device can go stale over time. 

        Please reboot the router and let us know if this helps with the connection 🙂

  • mrBi0's avatar
    mrBi0
    On our wavelength
    6 months ago

    The engineer came out yesterday, checked signal levels in the house, cleaned the fibre ends coming in from the street & also replaced my router.  Hasn't made much difference I'm afraid - still getting frequent periods of high latency and the occasional blast of packet loss.  Ignore the large red area between 2 & 4pm - BQM hadnt picked up my new IP after the router was swapped out...


    My Broadband Ping - Home Broadband

    • Kath_P's avatar
      Kath_P
      Forum Team
      6 months ago

      Hi mrBi0, 

      Thanks for coming back to us on this and updating us on how the visit went. 

      We're sorry to see you've not noticed much improvement. Once a hub has been replaced, it can take some time to settle back on to the network. 

      How has things been since you posted? Are you still having continued issues or have these improved?

      Pop back and let us know so we can help further. 

      Thanks, 

      • mrBi0's avatar
        mrBi0
        On our wavelength
        6 months ago

        Things have much improved since the weekend.  

        It's been pretty stable with low latency and no packet loss since Sunday!