Forum Discussion

andy1027's avatar
andy1027
Up to speed
5 months ago

Flaky connection - Belfast - Intermittent

Moved home recently this year and took our VM kit with us as per the moving home process. We've had a good connection using the Super Hub 3 (in Modem mode). In the last two weeks we have noticed the connection to be flaky and has dropped out completely at times. We have rebooted our kit several times and checked the connections on all the cabling.

I took a look at the power levels on the super hub and have had a BB monitor running for the last few days to try and get a look on this. 

Would be grateful for a forum moderator to run some tests on our line to ascertain if we need a technician to visit. Thank you

See below BB snapshot graph and stats from the modem.

 

 

 

 

 

SUPER HUB 3.0 (Modem Mode)

Downstream bonded channels

Channel

Frequency (Hz)

Power (dBmV)

SNR (dB)

Modulation

Channel ID

1

203000000

9.1

40

256 qam

9

2

139000000

8.8

37

256 qam

1

3

163000000

10.4

40

256 qam

4

4

171000000

10.5

40

256 qam

5

5

195000000

9.5

40

256 qam

8

6

227000000

9.1

40

256 qam

12

7

235000000

9.5

40

256 qam

13

8

243000000

9.5

40

256 qam

14

9

251000000

10

40

256 qam

15

10

275000000

10.8

40

256 qam

18

11

283000000

11.5

40

256 qam

19

12

307000000

12.1

38

256 qam

22

13

315000000

11.9

40

256 qam

23

14

331000000

11.9

40

256 qam

25

15

339000000

11.5

40

256 qam

26

16

347000000

11.5

40

256 qam

27

17

355000000

11.4

40

256 qam

28

18

363000000

11.4

40

256 qam

29

19

371000000

11.3

40

256 qam

30

20

379000000

10.9

38

256 qam

31

21

387000000

11.6

40

256 qam

32

22

395000000

12

40

256 qam

33

23

403000000

12.3

40

256 qam

34

24

419000000

12.4

40

256 qam

36

 

Downstream bonded channels

Channel

Locked Status

RxMER (dB)

Pre RS Errors

Post RS Errors

1

Locked

40.3

4376587

979414

2

Locked

37.6

5606647

2738070

3

Locked

40.3

3649776

1663622

4

Locked

40.3

3666532

1477538

5

Locked

40.3

3604484

1045672

6

Locked

40.3

3349111

627535

7

Locked

40.3

3272514

547070

8

Locked

40.3

3186905

473055

9

Locked

40.3

3097264

413716

10

Locked

40.3

2783774

256886

11

Locked

40.3

2679305

220738

12

Locked

38.9

2361308

132667

13

Locked

40.3

2245594

111520

14

Locked

40.9

2044959

82102

15

Locked

40.3

1961773

71707

16

Locked

40.9

1834799

58936

17

Locked

40.3

1746267

51260

18

Locked

40.3

1712543

47918

19

Locked

40.3

1553984

37356

20

Locked

38.9

1494439

33636

21

Locked

40.3

1431158

30873

22

Locked

40.3

1328795

26236

23

Locked

40.3

1201483

19707

24

Locked

40.3

1117144

18647

 

 

Upstream bonded channels

Channel

Frequency (Hz)

Power (dBmV)

Symbol Rate (ksps)

Modulation

Channel ID

1

49600000

45.3

5120

64 qam

1

2

23600000

46

5120

64 qam

5

3

30100000

46

5120

64 qam

4

4

36600000

45

5120

64 qam

3

5

43100000

46.5

5120

64 qam

2




Upstream bonded channels

Channel

Channel Type

T1 Timeouts

T2 Timeouts

T3 Timeouts

T4 Timeouts

1

ATDMA

0

0

4

0

2

ATDMA

0

0

14

0

3

ATDMA

0

0

2

0

4

ATDMA

0

0

7

0

5

ATDMA

0

0

3

0

 

  • Network Log

    Time

    Priority

    Description

    02/10/2024 21:07:29

    Warning!

    RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 20:18:12

    critical

    SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 18:54:6

    Warning!

    RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 18:38:50

    critical

    SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:47:30

    Warning!

    RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:46:56

    Warning!

    Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:45:52

    Warning!

    RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:45:48

    critical

    No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:45:42

    Warning!

    RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:45:16

    Warning!

    Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:44:49

    critical

    No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:44:40

    critical

    SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:44:28

    Warning!

    RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:44:23

    Warning!

    Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:43:56

    Warning!

    RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:43:47

    critical

    No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:43:11

    critical

    SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:42:51

    Warning!

    RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:42:27

    critical

    No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

    02/10/2024 13:42:7

    critical

    SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

     

     

     

    General Configuration

    Network access

    Allowed

    Maximum Number of CPEs

    1

    Baseline Privacy

    Enabled

    DOCSIS Mode

    Docsis30

    Config file

    rkldJKDHSUBsgvca69834ncxv




    Primary Downstream Service Flow

    SFID

    31122

    Max Traffic Rate

    143750047

    Max Traffic Burst

    42600

    Min Traffic Rate

    0




    Primary Upstream Service Flow

    SFID

    31119

    Max Traffic Rate

    22000047

    Max Traffic Burst

    42600

    Min Traffic Rate

    0

    Max Concatenated Burst

    42600

    Scheduling Type

    BestEffort

     

  • legacy1's avatar
    legacy1
    Alessandro Volta

    Looks like upstream noise they will likely say its downstream power and fix that and you still have problems

  • It can take several hours to a week for a reply from VM, however, they may not have access to your account and HUB to troubleshoot since you are based in Belfast.