Forum Discussion

avi68's avatar
avi68
Superfast
2 years ago

Upstream Modulation Changing

Hi,

I have a Hub 5 in modem mode. Ive noticed that the Upstream modulation has started to fluctuate between 32QAM and 64QAM. This has been happening for over a month now. Initially the modulation would drop to 16QAM and stay between 16 and 32. However, more recently its been sticking at 32QAM, then jumping to 64 and then going back to 32.

Speeds seem to be ok but I have started to notice random packet loss. Last Thursday evening packet loss was very bad but it seems to have stabilised. I have called CS multiple times but the script they follow doesnt seem to have an answer to my issue. Packet loss is still occurring, not as bad, just small amounts randomly. Dont know if anyone can see an issue with my levels?

 

Cable Modem Status

Item

Status

Type

Cable Modem Status

Online

DOCSIS 3.0

Primary downstream channel

Locked

SC-QAM

Channel Overview

Downstream

Upstream

DOCSIS 3.0 channels

31

5

DOCSIS 3.1 channels

1

1

3.0 Downstream channels

Channel

Frequency (Hz)

Power (dBmV)

SNR (dB)

Modulation

Channel ID

1

331000000

6.9

41

QAM 256

25

2

139000000

9.4

40

QAM 256

1

3

147000000

9.3

40

QAM 256

2

4

155000000

9.2

40

QAM 256

3

5

163000000

8.9

40

QAM 256

4

6

171000000

8.8

39

QAM 256

5

7

179000000

8.5

39

QAM 256

6

8

187000000

8.4

39

QAM 256

7

9

195000000

8.3

39

QAM 256

8

10

203000000

8.1

39

QAM 256

9

11

211000000

8.2

39

QAM 256

10

12

219000000

8.1

39

QAM 256

11

13

227000000

7.8

38

QAM 256

12

14

235000000

7.6

38

QAM 256

13

15

243000000

7.3

38

QAM 256

14

16

251000000

7

39

QAM 256

15

17

259000000

6.8

39

QAM 256

16

18

267000000

6.7

39

QAM 256

17

19

275000000

6.6

39

QAM 256

18

20

283000000

6.5

40

QAM 256

19

21

291000000

6.7

40

QAM 256

20

22

299000000

6.7

40

QAM 256

21

23

307000000

7

40

QAM 256

22

24

315000000

7

40

QAM 256

23

25

323000000

7.1

41

QAM 256

24

26

339000000

7

41

QAM 256

26

27

347000000

6.7

41

QAM 256

27

28

355000000

6.7

41

QAM 256

28

29

363000000

6.5

41

QAM 256

29

30

371000000

6.5

41

QAM 256

30

31

379000000

6.5

41

QAM 256

31

3.0 Downstream channels

Channel

Locked Status

RxMER (dB)

Pre RS Errors

Post RS Errors

1

Locked

41

52

0

2

Locked

40

0

0

3

Locked

40

0

0

4

Locked

40

0

0

5

Locked

40

0

0

6

Locked

39

1

0

7

Locked

39

0

0

8

Locked

39

0

0

9

Locked

39

6

0

10

Locked

39

6

0

11

Locked

39

18

0

12

Locked

39

10

0

13

Locked

38

17

0

14

Locked

38

21

0

15

Locked

38

29

0

16

Locked

39

39

0

17

Locked

39

50

0

18

Locked

39

98

0

19

Locked

39

116

0

20

Locked

40

115

0

21

Locked

40

60

0

22

Locked

40

73

0

23

Locked

40

55

0

24

Locked

40

73

0

25

Locked

41

47

0

26

Locked

41

45

0

27

Locked

41

95

0

28

Locked

41

81

0

29

Locked

41

123

0

30

Locked

41

126

0

31

Locked

41

156

0

3.1 Downstream channels

Channel

Channel Width (MHz)

FFT Type

Number of Active Subcarriers

Modulation (Active Profile)

First Active Subcarrier (Hz)

41

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)

41

Locked

41

4.9

809061304

65

3.0 Upstream channels

Channel

Frequency (Hz)

Power (dBmV)

Symbol Rate (ksps)

Modulation

Channel ID

0

49600000

44.5

5120

QAM 32

1

1

43100000

44.3

5120

QAM 32

2

2

36600000

44.3

5120

QAM 32

3

3

30100000

44

5120

QAM 32

4

4

23600000

43.8

5120

QAM 32

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

9

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

11

40.0

2K

QAM 256

3.1 Upstream channels

Channel

Channel Type

Number of Active Subcarriers

First Active Subcarrier (Hz)

T3 Timeouts

T4 Timeouts

6

OFDMA

220

74000000

0

0

 

  • Network Log

    Time

    Priority

    Description

    22-01-2024 13:35:27

    error

    DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    21-01-2024 14:46:38

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    21-01-2024 12:39:00

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    20-01-2024 11:04:39

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    19-01-2024 22:18:56

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    19-01-2024 14:52:15

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    19-01-2024 12:44:38

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    19-01-2024 10:37:01

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    19-01-2024 10:26:05

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    19-01-2024 10:21:02

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    19-01-2024 01:35:26

    error

    DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 23:30:23

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 23:25:20

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 22:46:04

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 22:41:01

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 22:39:51

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 22:34:48

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 22:31:02

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 22:25:59

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 22:15:04

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 22:10:01

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 22:08:11

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 22:03:08

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 21:53:50

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 21:48:47

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 21:44:30

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 21:39:27

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 21:29:40

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 21:24:37

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 21:17:23

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 21:12:20

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    18-01-2024 21:10:50

    notice

    US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=-;CMTS-MAC=-;CM-QOS=1.1;CM-VER=3.1;

    Thanks 

     

    • Kath_P's avatar
      Kath_P
      Forum Team

      Hi avi68, 

      Thanks for taking the time to contact us via the Community. It's lovely having you on board with us in the Forums.

      We're sorry to hear you've been having an issue with your service. I've taken a look at the hub at this end and I can see your downstream power levels are very slightly too high. Given the fact to hub is also switching between the 32QAM and 64QAM, I would like to arrange for an engineer to come to take a look at this for you. 

      I just need to confirm the address to ensure we are booking the visit on the correct account. I have sent you a direct message to allow us to do this with you in a private space. If you are using a PC/Laptop then you can just click on the little ✉ at the top right-hand side of the page to access your inbox. If you are on a mobile/tablet device then instead click on the little circle icon in the top right then select 'Messages'. 😊

      Thanks,

      • avi68's avatar
        avi68
        Superfast

        Thanks for your reply kath. I have messaged you back.

    • Kath_P's avatar
      Kath_P
      Forum Team

      Hi avi68, 

      Thanks for coming back to via private message to confirm your information. 🤩

      I have booked you in for the next available appointment. To view this please sign in to My Virgin Media here 👉 My VM. Once you log in scroll down to Orders & appointments then click on View your orders. Please note it can take up to 24 hours to show but you should also receive a text message with the details. You can also view this in the My VM app. If you have any issues with accessing your account or unable to see your visit, please do let us know and we’ll pop you a message to pass data protection and confirm the appointment details.

      Just to confirm, there will be no charge for this visit unless:

      • ➡ The technician diagnoses the faults as not being caused by our network/equipment
      • ➡ The technician discovers that the fault or problem relates to your equipment
      • ➡ The technician discovers that the fault or problem relates to any system that we are not responsible for
      • ➡ The technician will confirm during their visit if any of these instances apply, and if so, a £25 charge will be applied to your account.

      Please ensure there is someone over the age of 18 present at the time of the visit. If you need to change or cancel your appointment you can do this online or via the MyVM app by 4pm the day before the appointment. If you do miss an agreed appointment for any reason, a £25 missed appointment charge will be applied to your account on the day of the appointment.

      We will continue to monitor your services and if we can see that the fault has cleared and the visit is no longer required we will cancel the appointment and let you know by text and email.

      Let us know how the appointment goes. 😊

      Take care.

  • Engineer visited on Tuesday, checked the power levels coming in and confirmed they were already in spec. I mentioned an ongoing issue with the street cabinet. He has raised this and Im hoping that Networks will come and tidy up the cabinet (this has probably been the 8th time Ive mentioned the state of the cabinet to a number of engineers). 

    Everything was working well until yesterday evening at 8:22 when my connection went down (both Wired and wireless). I looked at the hub 5 logs and it showed "16 consecutive T3 timeouts". Something still isnt right. 

    Logs:

    31-01-2024 20:23:01criticalUnicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    31-01-2024 20:23:01critical16 consecutive T3 timeouts while trying to range on upstream channel 8;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    31-01-2024 20:21:53criticalStarted Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;

    Upstream 3.1 channel is where the timeouts occurred

    3.0 Upstream channels

    Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
    04960000044.55120QAM 641
    14310000044.55120QAM 642
    23660000044.35120QAM 643
    33010000044.35120QAM 644
    423600000445120QAM 645

    3.0 Upstream channels

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

    3.1 Upstream channels

    Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation
    61140.02KQAM 256

    3.1 Upstream channels

    Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts
    6OFDMA22074000000180
    • Kath_P's avatar
      Kath_P
      Forum Team

      Hi avi68, 

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

      Our diagnostics on your home network and Hub have not found any issues that could account for the issues you're having. This means that the issues are most likely due to the equipment being used in the home. We can see you're using a third party router with the hub in modem mode. 

      Can you take this out of the equation and pop the hub into it's usual router mode to see if the issues continue when connecting in this way?

      Keep us posted on how things go. 

      Thanks, 

      • avi68's avatar
        avi68
        Superfast

        Hi Kath,

        I have already tried this before and it has not made any difference. Although this issue isnt constantly happening it does happen very randomly and its annoying when it does because it takes down everything (wired and wireless connections).

        I understand its easy to blame customer equipment but in this case, as you can see from the logs, the hub is timing out which shows that there is an issue between the hub and virgin media's network. My router isnt timing out or dropping out, its your side. Why would my own router logs show "16 consecutive T3 timeouts"? This can be seen from the hub 5 logs.

        I have been monitoring my neighbours virgin media connection and he hasnt had a bunch of T3 timeouts in one go (he has lots of T3 timeouts but not all occurring at once) but he has a hub3. Ive noticed that the large amount of timeouts seem to occur on the 3.1 upstream channel (which the hub3's do not use). Surely there must be something causing those timeouts? 

        Could you explain what "16 consecutive T3 timeouts" means?

        I also had a random reboot the morning at 2:50am, but in the log it just says reboot due to unknown. Firmware level is still the same and there has been no power cut.

        Looking forward to your reply.

        Thanks

  • Hub 5 rebooted again this morning at 2am. Log says reboot due to unknown. 

    • Matthew_ML's avatar
      Matthew_ML
      Forum Team

      Hey Avid68, thank you for reaching out and I am sorry to hear this.

      I have checked from our end and I can see you've spoke to someone since this post, did they manage to help at all?

      • avi68's avatar
        avi68
        Superfast

        Hi Matthew,

        Not really, they tried to go through their script again but when I told them to read the account notes they said its currently with the networks team. As of yet Im waiting for an update. The modem rebooted on Tuesday and Wednesday morning at 2am. Interestingly, it didnt reboot this morning. Normally it reboots on Tues,Wed,Thursday mornings. 

        Is there a way you could get an update from networks?

  • Another reboot this morning, hub 5 logs:

    20-02-2024 02:55:01noticeREGISTRATION COMPLETE - Waiting for Operational status
    20-02-2024 02:54:57noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 11 13.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    20-02-2024 02:54:51noticeDS 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;
    20-02-2024 02:54:48noticeTLV-11 - unrecognized OID;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    20-02-2024 02:54:45warningDHCP WARNING - Non-critical field invalid in response ;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    20-02-2024 02:54:43noticeHonoring MDD; IP provisioning mode = IPv4
    20-02-2024 02:54:26criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    20-02-2024 02:54:25criticalCable Modem Reboot because of - unknown
    • Viper-t's avatar
      Viper-t
      Fibre optic

      I am having the same issues, also problems but with downstream 3.1 now, uncorrected errors, was having problems on upstream profile 11,13 too. Engineer rang me said my area bristol is well not good in his words... slightly different words. Hasn't rang back since, still waiting, complaints told me to get hold of faults, yet there is no ticket number for me to reference. Out at the min will post stats later. After 60 second no ethernet reset uncorrected errors presented on the 3.1 instantly daily profile changes, routing profile problem?.

    • Matthew_ML's avatar
      Matthew_ML
      Forum Team

      Hey avi68, thank you for reaching out and I am sorry to see this.

      Thank you for sending all these screenshots and evidence over.

      I am going to send you a DM so we can look into this 

    • Beth_G's avatar
      Beth_G
      Forum Team

      Hi avi68 

      Thanks for getting back to me with your details via PM.

      I've gone ahead and booked in an engineer appointment for you.

      There’ll be no charge for this visit unless:

       

       The technician finds that the issue isn’t due to our network or equipment, for example if it relates to equipment or other systems not provided by us, or it’s been damaged.

       

       You miss the appointment for any reason, or someone over 18 isn’t in at the time of the appointment.

       

      Otherwise, the appointment would be free of charge.

      The technician will confirm if a charge is applicable and a £25 Appointment Charge or a £25 Missed Appointment Charge may be applied to your account.

      If you need to change or cancel your appointment you can reply to the SMS you’ll receive, or you can manage this through the My Virgin Media App up to 4pm the day before the appointment.


      Let us know how the visit goes and if you need anything else 😊

       

      • avi68's avatar
        avi68
        Superfast

        Hi Beth,

        I dont understand why an engineer has been booked? Ive probably had over 5 engineers attend in the last 2 months. None of which could do anything. I was told the fault was currently with the networks team as there was a wider impact. There is physically nothing the engineers can do. 

        Please also note that other members of this forum are also getting the disconnection issues on the days and times I have mentioned. So this isnt just isloated to me.

        It would be better to get an update from the networks team to find out if they've found the issue, as having an engineer attend isnt going to help me much.

        Thanks

  • So engineer said there is packet loss when he did a traceroute reported to networks and was very thorough while at my parents place and spoke freely of the problems which also effects a few of us I'm monitoring. I've noticed they have changed there ip address to wa7 area near the Midlands (monitoring?) we are all in Bristol. Hasn't rang back as of yet he rang last week and said to give him some time a day or 2 which I gave a week, specs below problems persist. He didn't sound optimistic saying that all of Bristol was ****** and wouldn't have any sort of time on a fix, can I get a ticket number? He put a double forward path as 3.1 was 11dbmv that's nearly centered the 3.0 and 3.1 is now at 5.2 even though -9 total was put on. 

    hannel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
    1331000000441QAM 25625
    21470000000.941QAM 2562
    31550000000.941QAM 2563
    4163000000141QAM 2564
    51710000001.341QAM 2565
    61790000001.541QAM 2566
    71870000001.641QAM 2567
    8195000000241QAM 2568
    92030000002.141QAM 2569
    102110000002.541QAM 25610
    112190000002.541QAM 25611
    122270000002.741QAM 25612
    132350000002.941QAM 25613
    142430000002.941QAM 25614
    152510000002.841QAM 25615
    162590000002.942QAM 25616
    172670000002.941QAM 25617
    182750000003.142QAM 25618
    192830000003.342QAM 25619
    202910000003.442QAM 25620
    212990000003.442QAM 25621
    223070000003.642QAM 25622
    233150000003.842QAM 25623
    24323000000442QAM 25624
    253390000004.141QAM 25626
    263470000004.141QAM 25627
    273550000004.141QAM 25628
    283630000004.241QAM 25629
    293710000004.141QAM 25630
    30379000000441QAM 25631
    313870000003.841QAM 25632

    3.0 Downstream channels

    Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
    1Locked4100
    2Locked4100
    3Locked4100
    4Locked4110
    5Locked4100
    6Locked4100
    7Locked4100
    8Locked4100
    9Locked4100
    10Locked4100
    11Locked4100
    12Locked4100
    13Locked4100
    14Locked4100
    15Locked4100
    16Locked4200
    17Locked4100
    18Locked4200
    19Locked4200
    20Locked4200
    21Locked4200
    22Locked4200
    23Locked4200
    24Locked4210
    25Locked4100
    26Locked4100
    27Locked4100
    28Locked4110
    29Locked4100
    30Locked4100
    31Locked4100

    3.1 Downstream channels

    Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
    33944K1840QAM 40961108

    3.1 Downstream channels

    Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)
    33Locked415.22700563850

     

    Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
    04960000043.55120QAM 641
    14310000043.55120QAM 642
    23660000043.55120QAM 643
    33010000043.55120QAM 644
    42360000043.55120QAM 645

    3.0 Upstream channels

    Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
    0ATDMA0000
    1ATDMA0000
    2ATDMA0000
    3ATDMA0000
    4ATDMA0010

    3.1 Upstream channels

    Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation
    61139.52KQAM 256

    3.1 Upstream channels

    Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts
    6OFDMA2207400000000
    • avi68's avatar
      avi68
      Superfast

      Im no expert, but that those stats look ok to me. Ignore the Pre RS errors and corrected errors (3.1 channel). Its the post RS and uncorrected errors you need to be worried about. If they start to rise quickly then theres a fault. 

      Regarding packet loss, how are you measuring this? I have a few BQM's on a few houses down my street and compare packet loss and issues with their graphs. If  we all have blips at the same time then I know its an area issue if its just me or them then its something local to our setup. My firewall also shows me if there is packet loss on my WAN connection, thats the way I know if there are problems.