on 03-03-2022 18:29
Hiya
I updated 2 months ago to the superfast 1GB speed, and got the upgraded hub 4.
I use Router Modem Mode to -> Archer C7 -> Wired to PC.
I have a few connected devices and WAPs but my testing and troubleshooting is done from my main PC.
I have a mixture of Cat 5e and Cat 6 cables so they shouldn't influence any speed issues.
I upgrade to 1Gig so I'm wondering why I pay more for less performance.
My speed tests before were often nearer the top range of my last package, but now it fluctuates and seems to be even slower at times and I'm wondering if it has some other setting issue.
It seems on average to be the old sped, or slower.
I've seen some success, but the posts result in PMs and solutions, so I'm holding out hope!
Thanks!
All info requested from the main community page below:
Info from Hub 4 Status.
Cable Modem StatusItem Status CommentsChannel Overview Downstream Upstream
Cable Modem Status | Online | DOCSIS 3.1 |
Primary downstream channel | Locked | SC-QAM |
DOCSIS 3.0 channels | 31 | 4 |
DOCSIS 3.1 channels | 1 | 0 |
SFID | 89692 |
Max Traffic Rate | 1200000450 |
Max Traffic Burst | 42600 |
Min Traffic Rate | 0 |
SFID | 89691 |
Max Traffic Rate | 55000270 |
Max Traffic Burst | 42600 |
Min Traffic Rate | 0 |
Max Concatenated Burst | 42600 |
Scheduling Type | bestEffort |
See next post reply.
Answered! Go to Answer
03-03-2022 18:35 - edited 03-03-2022 18:37
@farske wrote:Downstream
3.0 Downstream channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
25 331000000 9.000000 36.609653 QAM256 25 1 139000000 6.300003 34.925610 QAM256 1 2 147000000 6.199997 34.925610 QAM256 2 3 155000000 6.400002 35.779911 QAM256 3 4 163000000 6.699997 35.595078 QAM256 4 5 171000000 6.900002 35.779911 QAM256 5 6 179000000 7.099998 35.595078 QAM256 6 7 187000000 7.300003 35.779911 QAM256 7 8 195000000 7.300003 35.779911 QAM256 8 9 203000000 7.199997 35.779911 QAM256 9 10 211000000 7.400002 36.386890 QAM256 10 11 219000000 7.599998 36.386890 QAM256 11 12 227000000 7.599998 36.609653 QAM256 12 13 235000000 7.500000 35.595078 QAM256 13 14 243000000 7.300003 35.595078 QAM256 14 15 251000000 7.300003 35.083549 QAM256 15 16 259000000 7.800003 35.083549 QAM256 16 17 267000000 7.900002 35.779911 QAM256 17 18 275000000 7.900002 35.595078 QAM256 18 19 283000000 7.400002 35.595078 QAM256 19 20 291000000 7.599998 35.083549 QAM256 20 21 299000000 9.500000 36.386890 QAM256 21 22 307000000 10.000000 36.609653 QAM256 22 23 315000000 9.500000 36.386890 QAM256 23 24 323000000 9.300003 36.609653 QAM256 24 26 339000000 9.199997 36.386890 QAM256 26 27 347000000 9.699997 37.355988 QAM256 27 28 355000000 9.500000 36.386890 QAM256 28 29 363000000 9.300003 35.779911 QAM256 29 30 371000000 9.699997 36.609653 QAM256 30 31 379000000 9.599998 36.386890 QAM256 31
3.0 Downstream channels
Channel Lock Status RxMER (dB) Pre RS Errors Post RS Errors
25 Locked 36.609653 195917 0 1 Locked 34.925610 726267 0 2 Locked 34.925610 706709 0 3 Locked 35.779911 685723 0 4 Locked 35.595078 522946 0 5 Locked 35.779911 426096 0 6 Locked 35.595078 404698 0 7 Locked 35.779911 353549 0 8 Locked 35.779911 340606 0 9 Locked 35.779911 362172 0 10 Locked 36.386890 325640 0 11 Locked 36.386890 276799 0 12 Locked 36.609653 289136 0 13 Locked 35.595078 410141 0 14 Locked 35.595078 485416 0 15 Locked 35.083549 514554 0 16 Locked 35.083549 531884 0 17 Locked 35.779911 436898 0 18 Locked 35.595078 398101 0 19 Locked 35.595078 596552 0 20 Locked 35.083549 654935 0 21 Locked 36.386890 208806 0 22 Locked 36.609653 138645 0 23 Locked 36.386890 184933 0 24 Locked 36.609653 178967 0 26 Locked 36.386890 176686 0 27 Locked 37.355988 120333 0 28 Locked 36.386890 150030 0 29 Locked 35.779911 216512 0 30 Locked 36.609653 182866 0 31 Locked 36.386890 199722 0
3.1 Downstream channels
Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
33 96 4K 1880 QAM4096 424 3.1 Downstream channels
Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
33 Locked 38 10.3 1251279755 501145
Your downstream power levels are high, the DOCSIS 3.1 channel is technically out of spec (-6 to +10 in spec, 0bB being optimal)
The other concern is the Uncorrectables, highlighted, which you shouln't have any at all.
SNR is all over the place also.
Plenty of T3 timeouts also.
Looks like a noisy line.
One thing you can check is to ensure QOS isn't enabled on your Archer as it could be limiting the speed based on your old connection speed.
on 03-03-2022 18:30
Downstream
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
25 | 331000000 | 9.000000 | 36.609653 | QAM256 | 25 |
1 | 139000000 | 6.300003 | 34.925610 | QAM256 | 1 |
2 | 147000000 | 6.199997 | 34.925610 | QAM256 | 2 |
3 | 155000000 | 6.400002 | 35.779911 | QAM256 | 3 |
4 | 163000000 | 6.699997 | 35.595078 | QAM256 | 4 |
5 | 171000000 | 6.900002 | 35.779911 | QAM256 | 5 |
6 | 179000000 | 7.099998 | 35.595078 | QAM256 | 6 |
7 | 187000000 | 7.300003 | 35.779911 | QAM256 | 7 |
8 | 195000000 | 7.300003 | 35.779911 | QAM256 | 8 |
9 | 203000000 | 7.199997 | 35.779911 | QAM256 | 9 |
10 | 211000000 | 7.400002 | 36.386890 | QAM256 | 10 |
11 | 219000000 | 7.599998 | 36.386890 | QAM256 | 11 |
12 | 227000000 | 7.599998 | 36.609653 | QAM256 | 12 |
13 | 235000000 | 7.500000 | 35.595078 | QAM256 | 13 |
14 | 243000000 | 7.300003 | 35.595078 | QAM256 | 14 |
15 | 251000000 | 7.300003 | 35.083549 | QAM256 | 15 |
16 | 259000000 | 7.800003 | 35.083549 | QAM256 | 16 |
17 | 267000000 | 7.900002 | 35.779911 | QAM256 | 17 |
18 | 275000000 | 7.900002 | 35.595078 | QAM256 | 18 |
19 | 283000000 | 7.400002 | 35.595078 | QAM256 | 19 |
20 | 291000000 | 7.599998 | 35.083549 | QAM256 | 20 |
21 | 299000000 | 9.500000 | 36.386890 | QAM256 | 21 |
22 | 307000000 | 10.000000 | 36.609653 | QAM256 | 22 |
23 | 315000000 | 9.500000 | 36.386890 | QAM256 | 23 |
24 | 323000000 | 9.300003 | 36.609653 | QAM256 | 24 |
26 | 339000000 | 9.199997 | 36.386890 | QAM256 | 26 |
27 | 347000000 | 9.699997 | 37.355988 | QAM256 | 27 |
28 | 355000000 | 9.500000 | 36.386890 | QAM256 | 28 |
29 | 363000000 | 9.300003 | 35.779911 | QAM256 | 29 |
30 | 371000000 | 9.699997 | 36.609653 | QAM256 | 30 |
31 | 379000000 | 9.599998 | 36.386890 | QAM256 | 31 |
Channel Lock Status RxMER (dB) Pre RS Errors Post RS Errors
25 | Locked | 36.609653 | 195917 | 0 |
1 | Locked | 34.925610 | 726267 | 0 |
2 | Locked | 34.925610 | 706709 | 0 |
3 | Locked | 35.779911 | 685723 | 0 |
4 | Locked | 35.595078 | 522946 | 0 |
5 | Locked | 35.779911 | 426096 | 0 |
6 | Locked | 35.595078 | 404698 | 0 |
7 | Locked | 35.779911 | 353549 | 0 |
8 | Locked | 35.779911 | 340606 | 0 |
9 | Locked | 35.779911 | 362172 | 0 |
10 | Locked | 36.386890 | 325640 | 0 |
11 | Locked | 36.386890 | 276799 | 0 |
12 | Locked | 36.609653 | 289136 | 0 |
13 | Locked | 35.595078 | 410141 | 0 |
14 | Locked | 35.595078 | 485416 | 0 |
15 | Locked | 35.083549 | 514554 | 0 |
16 | Locked | 35.083549 | 531884 | 0 |
17 | Locked | 35.779911 | 436898 | 0 |
18 | Locked | 35.595078 | 398101 | 0 |
19 | Locked | 35.595078 | 596552 | 0 |
20 | Locked | 35.083549 | 654935 | 0 |
21 | Locked | 36.386890 | 208806 | 0 |
22 | Locked | 36.609653 | 138645 | 0 |
23 | Locked | 36.386890 | 184933 | 0 |
24 | Locked | 36.609653 | 178967 | 0 |
26 | Locked | 36.386890 | 176686 | 0 |
27 | Locked | 37.355988 | 120333 | 0 |
28 | Locked | 36.386890 | 150030 | 0 |
29 | Locked | 35.779911 | 216512 | 0 |
30 | Locked | 36.609653 | 182866 | 0 |
31 | Locked | 36.386890 | 199722 | 0 |
33 | 96 | 4K | 1880 | QAM4096 | 424 |
33 | Locked | 38 | 10.3 | 1251279755 | 501145 |
on 03-03-2022 18:31
CONFIG
Network access | true |
Maximum Number of CPEs | 1 |
Baseline Privacy | true |
DOCSIS Mode | 3.1 |
Config file | cmreg-vmdg640-bbt076+voc-b.cm |
UPSTREAM
1 | 60300000 | 45.020599 | 5120 KSym/sec | 64QAM | 1 |
2 | 39400000 | 44.020599 | 5120 KSym/sec | 64QAM | 4 |
3 | 53700000 | 44.520599 | 5120 KSym/sec | 64QAM | 2 |
4 | 46200000 | 44.270599 | 5120 KSym/sec | 64QAM | 3 |
1 | US_TYPE_STDMA | 0 | 0 | 5 | 0 |
2 | US_TYPE_STDMA | 0 | 0 | 10 | 0 |
3 | US_TYPE_STDMA | 0 | 0 | 7 | 0 |
4 | US_TYPE_STDMA | 0 | 0 | 11 | 0 |
Network Log (I did try resetting it with the tool prior to this post)
Time Priority Description
Mon Jan 31 10:20:43 2022 | 3 | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
Mon Jan 31 10:20:48 2022 | 5 | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; |
03-03-2022 18:35 - edited 03-03-2022 18:37
@farske wrote:Downstream
3.0 Downstream channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
25 331000000 9.000000 36.609653 QAM256 25 1 139000000 6.300003 34.925610 QAM256 1 2 147000000 6.199997 34.925610 QAM256 2 3 155000000 6.400002 35.779911 QAM256 3 4 163000000 6.699997 35.595078 QAM256 4 5 171000000 6.900002 35.779911 QAM256 5 6 179000000 7.099998 35.595078 QAM256 6 7 187000000 7.300003 35.779911 QAM256 7 8 195000000 7.300003 35.779911 QAM256 8 9 203000000 7.199997 35.779911 QAM256 9 10 211000000 7.400002 36.386890 QAM256 10 11 219000000 7.599998 36.386890 QAM256 11 12 227000000 7.599998 36.609653 QAM256 12 13 235000000 7.500000 35.595078 QAM256 13 14 243000000 7.300003 35.595078 QAM256 14 15 251000000 7.300003 35.083549 QAM256 15 16 259000000 7.800003 35.083549 QAM256 16 17 267000000 7.900002 35.779911 QAM256 17 18 275000000 7.900002 35.595078 QAM256 18 19 283000000 7.400002 35.595078 QAM256 19 20 291000000 7.599998 35.083549 QAM256 20 21 299000000 9.500000 36.386890 QAM256 21 22 307000000 10.000000 36.609653 QAM256 22 23 315000000 9.500000 36.386890 QAM256 23 24 323000000 9.300003 36.609653 QAM256 24 26 339000000 9.199997 36.386890 QAM256 26 27 347000000 9.699997 37.355988 QAM256 27 28 355000000 9.500000 36.386890 QAM256 28 29 363000000 9.300003 35.779911 QAM256 29 30 371000000 9.699997 36.609653 QAM256 30 31 379000000 9.599998 36.386890 QAM256 31
3.0 Downstream channels
Channel Lock Status RxMER (dB) Pre RS Errors Post RS Errors
25 Locked 36.609653 195917 0 1 Locked 34.925610 726267 0 2 Locked 34.925610 706709 0 3 Locked 35.779911 685723 0 4 Locked 35.595078 522946 0 5 Locked 35.779911 426096 0 6 Locked 35.595078 404698 0 7 Locked 35.779911 353549 0 8 Locked 35.779911 340606 0 9 Locked 35.779911 362172 0 10 Locked 36.386890 325640 0 11 Locked 36.386890 276799 0 12 Locked 36.609653 289136 0 13 Locked 35.595078 410141 0 14 Locked 35.595078 485416 0 15 Locked 35.083549 514554 0 16 Locked 35.083549 531884 0 17 Locked 35.779911 436898 0 18 Locked 35.595078 398101 0 19 Locked 35.595078 596552 0 20 Locked 35.083549 654935 0 21 Locked 36.386890 208806 0 22 Locked 36.609653 138645 0 23 Locked 36.386890 184933 0 24 Locked 36.609653 178967 0 26 Locked 36.386890 176686 0 27 Locked 37.355988 120333 0 28 Locked 36.386890 150030 0 29 Locked 35.779911 216512 0 30 Locked 36.609653 182866 0 31 Locked 36.386890 199722 0
3.1 Downstream channels
Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
33 96 4K 1880 QAM4096 424 3.1 Downstream channels
Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
33 Locked 38 10.3 1251279755 501145
Your downstream power levels are high, the DOCSIS 3.1 channel is technically out of spec (-6 to +10 in spec, 0bB being optimal)
The other concern is the Uncorrectables, highlighted, which you shouln't have any at all.
SNR is all over the place also.
Plenty of T3 timeouts also.
Looks like a noisy line.
One thing you can check is to ensure QOS isn't enabled on your Archer as it could be limiting the speed based on your old connection speed.
on 03-03-2022 18:49
on 03-03-2022 18:50
@farske wrote:
Hi Carl,
Thanks for taking the time to look into it and highlight some issues.
I'll double-check QOM now.
Is there anything else I can amend here, or is this going to be down to VM?
VM will need to arrange an engineer visit to check over your connection.
on 03-03-2022 18:51
on 03-03-2022 19:00
@farske wrote:
Will I be Pm'd and contacted and arranged based off this post do you think?
I cant imagine trying to ring and book an engineer.
VM will reply to this thread, however it can take a few days to a week.
on 03-03-2022 19:11
...and then around another week for the actual appointment.
on 04-03-2022 00:18