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adamp
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Incosistent broadband speeds

Hi,

Any idea what causes such drastic changes in speed? Here are some recent results: http://prntscr.com/erg30m  Ranging from 2.21 to 218.64 Mb/s download speed, with not much in between actually. It's either super fast, or super slow. Not sure if it's related, but whenever it's slow, the router admin panel is also extremely slow to navigate. I'm also on a wired connection so no need to mention wireless issue etc.

Here are some current modem/router stats (while speed is slow):

Cable Modem Status Item Status Comments

Acquired Downstream Channel(Hz)
299000000
Locked
Ranged Upstream Channel(Hz)
39400000
Locked
Provisioning State
Online

 

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

1299000000-13.733256 qam13
2323000000-1433.4256 qam16
3315000000-1433.9256 qam15
4307000000-13.733.8256 qam14
5291000000-13.934.3256 qam12
6283000000-13.934.9256 qam11
7275000000-1434.3256 qam10
8267000000-13.734.4256 qam9
9259000000-13.534.9256 qam8
10251000000-1335256 qam7
11243000000-1335.5256 qam6
12235000000-1334.4256 qam5
13227000000-12.712.2256 qam4
14219000000-12.520.6256 qam3
15211000000-12.727.7256 qam2
16203000000-12.231256 qam1
 
Upstream bonded channels Channel ID Frequency(Hz) Mode Power
(dBmV) Modulation Channel Bandwidth(Hz) Symbol Rate (ksps)
1439400000ATDMA52.516 qam64000005120
1346200000ATDMA52.516 qam64000005120

 

Operational Configuration General Configuration Value

Network access
Enabled
Maximum Number of CPEs
1
Baseline Privacy
Enabled
Docsis Mode
Docsis30
Config file
V0dea97109ea7aa00.cm
Primary Downstream Service Flow
SFID906855
Max Traffic Rate230000000
Primary Upstream Service Flow
SFID906854
Max Traffic Rate12700000

 

Network Log Date And Time Error Number Event Description

2017-04-02 09:00:50.0084000700RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:01:13.0084020200Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:01:26.0084000700RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:02:21.0084020200Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:02:24.0084000700RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:04:33.0084020200Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:04:33.0084000700RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:06:10.0084020200Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:06:29.0084000700RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:07:37.0084020200Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:08:00.0084000700RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:08:13.0084020200Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:08:22.0084000700RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:08:57.0084020200Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:09:01.0084000700RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:12:21.0084020200Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:12:22.0084000700RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:12:41.0084020200Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:12:42.0084000700RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
2017-04-02 09:16:03.0084020200Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

Thanks

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tommey
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Message 2 of 6
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Re: Incosistent broadband speeds

Call Virgin your power levels are terrible get that sorted then test speeds again, please do not wait here for a reply from forum staff as this can take a week or more to get a reply.

Your downstream power levels are best when they are between -3 to + 8 dBmv

 


This is the poor quality of my Superhub 3 connection Smiley Sad
My Broadband Ping - Vivid 200 Gamer

- First reported 09/2014 - Fault ticket raised 01/01/15 -    - Review 01/05/15 - Review 12/08/15 - Review 14/10/15 - Review 04/11/15 - Review 15/04/16 - Review 06/07/16 - Review 31/09/16 - Review 30/11/16 - Review 15/02/17 - Review 12/07/17 - Review 20/09/17 - Review 14/06/17 - Review 10/01/18 - Review 25/04/18 - F004670584 << 3 YEARS+ 

But with BT Fibre I can actually game without lag Smiley Very Happy
My Broadband Ping - BT FIBRE 80/20

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Superuser
Superuser
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Message 3 of 6
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Re: Incosistent broadband speeds

In addition to what Tommy has said, the SNR is too low as well.

Dave.

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adamp
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Message 4 of 6
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Re: Incosistent broadband speeds

Thanks both. But which number is the power level and SNR? 

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Superuser
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Message 5 of 6
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Re: Incosistent broadband speeds

The negative numbers, -13.7 etc are the power levels and ideally want to be between -6 and +10.

Next column, 33, 33.4, 33.9 etc is the SNR and want to be above 34.5.

Dave.

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Forum Team
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Message 6 of 6
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Re: Incosistent broadband speeds

Sorry to hear about the connection fault experienced adamp,

I've located your account and there does appear to be some issues with the power levels present via the equipment.

I'd like to get one of our field engineers out to look into this further for you.

I've sent you a private message so that we can chat some more.

Hope to hear back from you soon,

Nat_J


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