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Continuous Issues With Noisy Line, Multiple Visits Haven't Solved

StopItRawr
Well-informed

Hello all

 

I am on a VM Gig1 (Boosted by Volt!) line and the poor thing appears to be affected by noise that VM can't solve

At the last visit a few months ago the tech replaced all of the internal bits of the line but noted the line to the cab was very old and asked for a re-pull but that hasn't happened yet. However the status page says no known issues and then alternately points to line issues that needs a tech, or sometimes "

Looks like there are issues in your postcode affecting your services"

The logs show multiple T3s and DBC-REQ Mismatch on the logs, as well as "US profile assignment change. US Chan ID: 6; Previous Profile: 12" with the US on the 3.1 side going from QAM128 to as low as 8, there's definitely noise somewhere. Could this be looked into preferably without having to send a poor tech here as they've literally eliminated all possible local issues short of changing the Hub 4 for a 5, thanks!

(DS and US SNRs and Power Levels are in spec)

13 REPLIES 13

StopItRawr
Well-informed

3.0 Upstream channels

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

13010000050.7705995120 KSym/sec64QAM4
22360000051.5205995120 KSym/sec64QAM5
33660000050.0205995120 KSym/sec64QAM3
44310000049.5205995120 KSym/sec64QAM2
54960000049.0205995120 KSym/sec64QAM1

 

3.0 Upstream channels

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

13010000050.7705995120 KSym/sec64QAM4
22360000051.5205995120 KSym/sec64QAM5
33660000050.0205995120 KSym/sec64QAM3
44310000049.5205995120 KSym/sec64QAM2
54960000049.0205995120 KSym/sec64QAM1

StopItRawr
Well-informed

Power levels have gone all weird again, DS down by avg 5 dbMv per channel and US now nearly out of spec. No changes internally, what happened?

Hi StopItRawr,

Thank you for keeping us updated with this. I am sorry to hear about the issue you have had. 

I am happy to take a look into this for you, to see if there is anything we can do to help. 

I will private message you now

^Martin

StopItRawr
Well-informed

Another visit, another promise of a re-pull, this time the same and then next day but hasn't materialsied.

 

This mornings fun stats.

 

Mon 19/06/2023
10:56:55
6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
10:56:55
5DBC-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;
Mon 19/06/2023
09:48:53
6US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
09:48:53
5DBC-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;
Mon 19/06/2023
07:14:57
6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
07:14:57
5DBC-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;
Mon 19/06/2023
06:34:32
6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
06:34:32
5DBC-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;
Mon 19/06/2023
06:24:30
6US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 12.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
05:24:35
6CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
05:03:11
3No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
04:47:25
6US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
04:11:28
6CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; 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 19/06/2023
04:03:12
6US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
04:03:12
5DBC-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;
Mon 19/06/2023
03:43:04
6US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
03:40:36
3No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
03:35:29
6CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; 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 19/06/2023
03:35:15
3SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
03:35:02
3No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 19/06/2023
03:27:42
6CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;