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JoeC87's avatar
JoeC87
Joining in
10 months ago

Packet Loss

So since June 25th it's when I started noticing it, i've been getting consistant packet loss small amounts but I could notice it during gaming. 

 

I was Monitoring with Boardband quality monitor and was getting consistant pack loss, I had an engineer visit who replaced some parts to noavail, he said he thinks it might be their network as my Upload speed (20mbps/40mbps) was faster on my device than the actual hub, he said he'll speak to the networking team to see if they can see anything on their end.

couple of days later a fault had been identfied  in my area so I signed up for fault updates, 2days ago I got an email saying F011378835 had been fixed, and I hadn't experianced any packet loss my upload speeds went back to normal (100mbps+), and 0 packet loss on all test for 2days.

but today it seems to have started again upload speed dropped right down to 20-40mbps from 100mbps and notice odd behaviour in games.

I've reset the hub but still experiancing the same - I will post Boardband quality Monitor tomorrow after several hours but this is just short period (the MS spike is probably me running tests) 

these are the hub stats (which honeslty I have no idea about other than seeing critical errors & Timeouts)

any help would be great, ive tried all the usual fixes, complete reset, turned off all devices, made sure all connections were tight & engineer also replaced some parts and made sure everything was clean etc. 

 

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

11710000004.141QAM 2565
21390000004.241QAM 2561
31470000004.342QAM 2562
41550000004.141QAM 2563
51630000004.241QAM 2564
61790000004.341QAM 2566
71870000004.441QAM 2567
81950000004.541QAM 2568
92030000004.641QAM 2569
102110000004.842QAM 25610
112190000004.542QAM 25611
122270000004.742QAM 25612
132350000004.542QAM 25613
142430000004.642QAM 25614
152510000004.442QAM 25615
162590000004.142QAM 25616
172670000004.142QAM 25617
18275000000442QAM 25618
19283000000442QAM 25619
202910000003.742QAM 25620
212990000003.542QAM 25621
223070000003.542QAM 25622
233150000003.442QAM 25623
243230000003.442QAM 25624
25331000000341QAM 25625
263390000003.442QAM 25626
273470000003.642QAM 25627
283550000003.642QAM 25628
293630000003.942QAM 25629
303710000003.842QAM 25630
313790000003.942QAM 25631
32387000000442QAM 25632

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

1Locked4100
2Locked4100
3Locked4200
4Locked4100
5Locked4100
6Locked4100
7Locked4110
8Locked4100
9Locked4100
10Locked4200
11Locked4200
12Locked4200
13Locked4200
14Locked4200
15Locked4200
16Locked4200
17Locked4200
18Locked4200
19Locked4200
20Locked4200
21Locked4200
22Locked4200
23Locked4200
24Locked4200
25Locked4100
26Locked4200
27Locked4200
28Locked4200
29Locked4200
30Locked4200
31Locked4200
32Locked4200

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)
159Locked435.334448580203

3.0 Upstream channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
06030000038.35120QAM 649
15370000038.35120QAM 6410
24620000038.35120QAM 6411
33940000038.35120QAM 6412
43260000038.35120QAM 6413
52360000038.85120QAM 6414

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
0ATDMA0050
1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000
5ATDMA0000

General Configuration

Network accessMaximum Number of CPEsBaseline PrivacyDOCSIS ModeConfig file
Allowed
3
Enabled
3.1
UBsgvca69834ncxv9873254k;fg87

Primary Downstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic RateSFIDMax Traffic RateMax Traffic BurstMin Traffic Rate
2747
128000 bps
4000bytes
0 bps
31122
1200000450 bps
42600bytes
0 bps

Primary Upstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic RateMax Concatenated BurstScheduling TypeSFIDMax Traffic RateMax Traffic BurstMin Traffic RateMax Concatenated BurstScheduling Type
2746
128000 bps
4000bytes
0 bps
1522bytes
Best Effort
31121
110000274 bps
42600bytes
0 bps
42600bytes
Best Effort

 

15 Replies

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  • JoeC87's avatar
    JoeC87
    Joining in
    10 months ago

    Logs after a reboot

    11-07-2024 18:38:14noticeGUI Login Status - Login Success from LAN interface
    11-07-2024 17:27:44warningDBC-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;
    11-07-2024 17:27:43criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    11-07-2024 17:21:25noticeCM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    11-07-2024 17:19:12noticeCM-STATUS message sent. Event Type Code: 16; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    11-07-2024 17:16:40noticeREGISTRATION COMPLETE - Waiting for Operational status
    11-07-2024 17:16:34warningDynamic Range Window violation
    11-07-2024 17:16:34warningRNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    11-07-2024 17:16:34warningREG-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;
    11-07-2024 17:16:29noticeDS 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;
    11-07-2024 17:16:28noticeTLV-11 - unrecognized OID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    11-07-2024 17:16:21warningDHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    11-07-2024 17:16:18noticeHonoring MDD; IP provisioning mode = IPv4
    11-07-2024 17:15:56criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    11-07-2024 17:15:51criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
    11-07-2024 17:15:51criticalCable Modem Reboot because of - Reboot UI
  • legacy1's avatar
    legacy1
    Alessandro Volta
    10 months ago

    post your full live BQM

    any spikes on BQM can be caused by you like speed tests without your own QoS/BWM or VM running tests and any spikes when your idle is a problem.

  • legacy1's avatar
    legacy1
    Alessandro Volta
    10 months ago

    a bit of low level packet loss that might be hard for VM to track down

  • JoeC87's avatar
    JoeC87
    Joining in
    10 months ago

    I've ran the top URL several times the past week or so and it's always losing then on received ill run more this afternoon when I'm back home.

  • legacy1's avatar
    legacy1
    Alessandro Volta
    10 months ago

    Your Docsis downstream shows fine so must be routing past that.

    you can run on wire for more info

    ping -t -w 200 194.168.4.100

    and 

    ping -t -w 1000 WAN gateway IP

    CTRL + Pause to show the current loss

  • JoeC87's avatar
    JoeC87
    Joining in
    10 months ago

    so this is this evening

    https://www.thinkbroadband.com/broadband/monitoring/quality/share/1bb500d1b8ca86184455d339346deb5c2e8f560a

    this is an average test on packet loss

    I ran 

    ping -t -w 200 194.168.4.100

    and saw no Packet loss from 229 pings

    I ran ping -t -w 1000 WAN gateway IP

    ran that for 100 pings and saw 0 packet loss.

    so I have no idea what's going on.

    My upload speed according to Virgin site and several others is 25mbps samknows has it about 40.... i'm suppose to be on 100mbps average. 

     

     

  • JoeC87's avatar
    JoeC87
    Joining in
    10 months ago

    so it continues.. yesterday I thought it had been fixed as my upload speed went back to normal and 0 packet loss all day but this afternoon, upload speed tanked to 20-30mbps again and consistant packet loss

    surely this is a VM issue? if it continues through the week I'll be calling up again. 

    • Alex_RM's avatar
      Alex_RM
      Icon for Forum Team rankForum Team
      9 months ago

      Hi JoeC87,

      Thanks for posting, and sorry to see you've been having some connection issues.

      How's it been since Sunday? Are the problems over both a wired and wireless connection?

      Are the download speeds fine? Is is just the upload speeds with the problem?

      Alex_Rm

      • JoeC87's avatar
        JoeC87
        Joining in
        9 months ago

        Hi Alex,

        So it seems the issue had sorted itself out from Sunday onwards in terms of upload speed, but it seems things are taking a turn for the worse again and ever since the 'fix' something didn't feel right in online games, I stopped monitoring via thinkbroadband but restarted it again tonight as something clearly isn't right with online performance, especially gaming. 

         

        This is using Wired connection only, i've tried several different cables. 

        this is my current upload speed which has dropped abit since the 'fix' but even since my upload speed went back to normal my latancy has been horrendous. 

        notice the Upload Latancy is absolutely dreadful, and i beleive this is causing issues online, i'm getting bufferload spikes of nearly 600ms at times.