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Stesmith92
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Message 1 of 18
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Latency issue during peak times

Hi,

I keep receiving latency issues everytime it gets to peak time.

Here are my recordings other the week of my internet:

https://www.thinkbroadband.com/broadband/monitoring/quality/share/939769dbbd10a43d08a809f4d6ad19f0034215ba-13-12-2021
https://www.thinkbroadband.com/broadband/monitoring/quality/share/eb7a3fc7bae56b67cbdf5e4cfeb8246f48307ce8-14-12-2021
https://www.thinkbroadband.com/broadband/monitoring/quality/share/54ef002eb90d54db04dfe9744bfb46902743a2a7-15-12-2021
https://www.thinkbroadband.com/broadband/monitoring/quality/share/26ed2d2b4a3ec084ceaac087b952dc9be4202c58-16-12-2021

 

I'm very much guessing it's do with VM over proving ISP in my area

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Stesmith92
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Message 2 of 18
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Re: Latency issue during peak times

*over the week

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Stesmith92
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Re: Latency issue during peak times

Also added Saturday's results & Sunday's.

 

https://www.thinkbroadband.com/broadband/monitoring/quality/share/5ff42815a41e4364000c18ae19fcf0d97fbd5aed-11-12-2021

 

https://www.thinkbroadband.com/broadband/monitoring/quality/share/f80d46ed65f2b737a6d533c06ddb5bdf462f812b-12-12-2021

 

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Adduxi
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Re: Latency issue during peak times


@Stesmith92 wrote:

Hi,

I keep receiving latency issues everytime it gets to peak time.


Yes that would be correct .  VM have a threshold for over utilisation and if it’s financially viable they will re-segment the network to cope. 

I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more

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Stesmith92
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Message 5 of 18
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Re: Latency issue during peak times

So is my issues definitely down to overproviding the ISP in my area?

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Stesmith92
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Re: Latency issue during peak times

Here's my downstream & upstream results if needed:

3.0 Downstream channels

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

253307500001.79999940.366287QAM25625
61787500003.29999940.366287QAM2566
71867500003.29999940.946209QAM2567
81947500003.00000040.946209QAM2568
92027500002.90000240.946209QAM2569
102107500002.59999840.366287QAM25610
112187500002.59999840.946209QAM25611
122267500002.29999940.946209QAM25612
132347500002.20000140.366287QAM25613
142427500002.40000240.946209QAM25614
152507500002.50000040.946209QAM25615
162587500002.70000140.946209QAM25616
172667500002.79999940.946209QAM25617
182747500003.00000040.366287QAM25618
192827500003.29999940.946209QAM25619
202907500003.50000040.946209QAM25620
212987500003.40000240.366287QAM25621
223067500002.90000240.946209QAM25622
233147500002.59999840.366287QAM25623
243227500002.09999840.366287QAM25624
263387500001.79999940.366287QAM25626
273467500001.70000140.946209QAM25627
283547500001.59999840.946209QAM25628
293627500001.59999840.946209QAM25629
303707500001.90000240.366287QAM25630
313787500001.79999940.946209QAM25631
11387500005.40000240.946209QAM2561
21467500005.69999740.366287QAM2562
31547500005.59999840.946209QAM2563
41627500004.80000340.946209QAM2564
51707500003.90000240.946209QAM2565



3.0 Downstream channels

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

25Locked40.36628700
6Locked40.36628700
7Locked40.94620900
8Locked40.94620940
9Locked40.94620900
10Locked40.36628700
11Locked40.94620900
12Locked40.94620900
13Locked40.36628700
14Locked40.94620900
15Locked40.94620900
16Locked40.94620900
17Locked40.94620900
18Locked40.36628700
19Locked40.94620900
20Locked40.94620900
21Locked40.36628700
22Locked40.94620900
23Locked40.36628700
24Locked40.36628700
26Locked40.36628700
27Locked40.94620900
28Locked40.94620900
29Locked40.94620900
30Locked40.36628700
31Locked40.94620900
1Locked40.94620900
2Locked40.36628700
3Locked40.94620900
4Locked40.94620900
5Locked40.94620900



3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
159964K1880QAM2048759


3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
159Locked432.2146501300
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Stesmith92
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Re: Latency issue during peak times

3.0 Upstream channels

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

13940000040.7705995120 KSym/sec64QAM4
24620000041.7705995120 KSym/sec64QAM3
35370000042.7705995120 KSym/sec64QAM2
46030000043.7705995120 KSym/sec64QAM1



3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1US_TYPE_STDMA0000
2US_TYPE_STDMA0000
3US_TYPE_STDMA0000
4US_TYPE_STDMA0000
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Stesmith92
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Message 8 of 18
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Re: Latency issue during peak times

Network Log

Time Priority Description

Thu Dec 16 21:20:06 20215MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Dec 16 21:32:24 20215DBC-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;
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Andrew-G
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Message 9 of 18
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Re: Latency issue during peak times


@Stesmith92 wrote:

So is my issues definitely down to overproviding the ISP in my area?


They might be, but the impact of the government's home working advice will be temporarily worsening things and there's nothing VM can do about that acute temporary effect.  Normally this affects the upstream and is correlated with office hours, but I'm not seeing that too obviously on your BQM. Chronic over-utilisation that has been running for months would be different, and that's simply an outcome of over-selling relative to network capacity, and that's not handled well - the most reliable and quickest fix is to get another ISP (using formal complaint and CISAS if VM try and claim an early exit fee). 

However, not all patterns like that are over-utilisation, and there might be a fault that simply becomes more significant when the network is busy.  I have flagged your post for staff to take a look, because the downstream power levels look appallingly wonky to me - the range is rather too wide with a thoroughly inconsistent "slope", and I'm not sure the D3.1 channel is running at the correct level relative to the other channels.

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Zak_M
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Message 10 of 18
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Re: Latency issue during peak times

Good morning @Stesmith92

 

Welcome back to the forums and thank you for taking the time to post, 

 

I am sorry to hear that you have had some issues with your broadband. 

 

I have taken a look over your account and can see that there are defiantly some issues with your upstream that we are going to need an engineer to put right. 

 

I will pop you over a PM so that I can confirm your address. 

 

Kind regards,

Zak_M

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