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Evening download and upload speed decrease.

Hello,
I was really hoping that the issue is temporary, but at this point I can certainly say that is it not. 

Issue: Mainly around 6-10 pm I am having DOWNLOAD and UPLOAD speed decrease. Firstly I checked if I am not losing any packets and how is the ping doing during that time but both of them are fine, packet loss is always on 0%, there is usually few lost but I do not think that is the matter, the ping itself is fine as well. The problem occurred around a month and a half ago and it seemed like usual performance downgrade as it is happening since I joined virgin media from time to time. Never last long so I was not afraid of that. Anyway I am attaching the pinging service history from today when the problem happened for the proof. I am not taking screenshot of the speed itself as I believe you are able to check it online. 

I have got M350 broadband packet and media hub 3. I never had a bad opinion about it, so I would like to stay like that. Please let me know if anyone has any idea what might cause the issue, if I should attach some data please let me know what is it and how am I able to  get it. 

I am absolutely not an expert when it comes to broadband connection, but I am aware enough to see that something is going on and it is not caused by me.

Many thanks for any source of help

Stay Safe

PS. Obviously I have got the PC connected with a wire and also checked on other devices, the problem remains the same.

ping history.png

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Alessandro Volta
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Message 2 of 12
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Re: Evening download and upload speed decrease.

Have you checked the 'Check Service Status' at the top of the page ?

If nothing is showing try phoning 0800 561 0061, this will tell you of more local issues that may be affecting your district. Be aware that it isn't a manned line.

Go round all the accessible internal and external co-ax connections and ensure that they are finger tight.

If everything above is OK we need do some more troubleshooting; to start with …

Disable any VPNs that you have running.

Can you set up a Broadband Quality Monitor (BQM) at thinkbroadband.com - this will give you an insight into what is happening with the signal at the other side of the Hub, it will take a few hours to get any kind of trend showing although you should post the link straight away.

Post a 'Live Link' to your BQM on here.

Instructions for posting BQM Link

Under your BQM graph are two links in red.

Click the lower link (Share Live Graph) then click generate.

Copy the text in the Direct Link box, beware, there may be more text than you can see.

On here click the Link icon (2 links chain to the left of the camera icon)

In the URL box paste the link you copied and in the ‘text to display’ box write My BQM then click OK - you can post the link straight away.

***********************************************************************************************************************************

Mike Robinson
Semi-Retired Aircraft Engineer & Computer Based Training and Learning Designer for many of the world's Military Arms.

My Broadband Ping - Mike Robbo
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Message 3 of 12
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Re: Evening download and upload speed decrease.

Can you please

Type 192.168.0.1 (192.168.100.1 in Modem mode) into your browser URL bar and press enter. 

Hub 2 & 3 When the page appears DO NOT LOG IN but click ‘Check Router Status’.

Hub 4 When the page appears LOG IN then click ‘Check Router Status’.

Copy and paste the contents of the Downstream, Upstream, Configuration and Network Log tabs onto here, if you get a yellow / straw box warning click the Post button again. Use one post for each tab if you wish.

Please do not use screen grabs.

A Guru will be along soon to decipher the info.

***********************************************************************************************************************************

Mike Robinson
Semi-Retired Aircraft Engineer & Computer Based Training and Learning Designer for many of the world's Military Arms.

My Broadband Ping - Mike Robbo
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Re: Evening download and upload speed decrease.

MY BQM LINK 

Downstream

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

12030000007.440256 qam9
21390000008.538256 qam1
31470000008.540256 qam2
41550000008.940256 qam3
51630000008.540256 qam4
61710000008.640256 qam5
7179000000840256 qam6
81870000008.440256 qam7
91950000007.840256 qam8
10211000000740256 qam10
112190000006.640256 qam11
122270000006.940256 qam12
132350000006.840256 qam13
142430000006.640256 qam14
152510000006.540256 qam15
162590000006.440256 qam16
172670000005.940256 qam17
182750000005.940256 qam18
192830000005.640256 qam19
202910000005.640256 qam20
21299000000640256 qam21
22307000000640256 qam22
233150000005.540256 qam23
243230000005.840256 qam24



Downstream bonded channels

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

1Locked40.31170
2Locked38.9470
3Locked40.3960
4Locked40.32550
5Locked40.91790
6Locked40.31650
7Locked40.31090
8Locked40.3590
9Locked40.9670
10Locked40.9480
11Locked40.31290
12Locked40.3440
13Locked40.3350
14Locked40.3690
15Locked40.91680
16Locked40.91270
17Locked40.32010
18Locked40.32120
19Locked40.91770
20Locked40.9520
21Locked40.3580
22Locked40.3510
23Locked40.3640
24Locked40.3540

 

Upstream

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

16030000044.8512064 qam1
24620000044512064 qam3
35370000044.5512064 qam2
43940000043.8512064 qam4



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0080
2ATDMA0000
3ATDMA0000
4ATDMA0020



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Message 5 of 12
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Re: Evening download and upload speed decrease.

General Configuration

Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
cmreg-vmdg505-bbt062+voc-b.cm



Primary Downstream Service Flow

SFID276830
Max Traffic Rate402500089
Max Traffic Burst42600
Min Traffic Rate0



Primary Upstream Service Flow

SFID276829
Max Traffic Rate38500089
Max Traffic Burst42600
Min Traffic Rate0
Max Concatenated Burst42600
Scheduling TypeBestEffort

 

Network Log

Time Priority Description

12/11/2020 17:52:48ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
10/11/2020 06:30:48criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/11/2020 05:52:48ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/11/2020 05:01:25criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/11/2020 17:50:13noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/11/2020 15:28:37criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/11/2020 08:10:33ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:36criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/11/2020 02:12:38noticeSW download Successful - Via NMS
04/11/2020 02:09:4noticeSW Download INIT - Via NMS
02/11/2020 16:43:11criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/11/2020 14:05:3ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/10/2020 08:44:14criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/10/2020 02:05:3ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/10/2020 01:32:31criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/10/2020 01:31:38criticalReceived Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/10/2020 01:26:9Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/10/2020 01:26:5Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/10/2020 01:26:5criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/10/2020 01:26:5Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

Status

Item Status Comments

Acquired Downstream Channel (Hz)
203000000
Locked
Ranged Upstream Channel (Hz)
60300000
Locked
Provisioning State
Online
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Re: Evening download and upload speed decrease.

Bump
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Re: Evening download and upload speed decrease.

If you wait on here Do Not bump the thread it will put it further down the VM 'to do list'.

***********************************************************************************************************************************

Mike Robinson
Semi-Retired Aircraft Engineer & Computer Based Training and Learning Designer for many of the world's Military Arms.

My Broadband Ping - Mike Robbo
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Message 8 of 12
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Re: Evening download and upload speed decrease.

There is nothing in your Hub data or BQM that jumps out as a problem.

From mid afternoon and every couple of hours can you check the speeds  at >> speedtest.net << with a direct connection using a Cat 5E or better cable between the Hub in Router Mode and a 1Gbs capable Pc/Mac/Chromebook and no other devices connected ?

***********************************************************************************************************************************

Mike Robinson
Semi-Retired Aircraft Engineer & Computer Based Training and Learning Designer for many of the world's Military Arms.

My Broadband Ping - Mike Robbo
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Message 9 of 12
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Re: Evening download and upload speed decrease.

Today at 9 pm I got 89.86 Mbps instead of 350+ for a while, so the same problem as before. Although it is not so often anymore, as far as I remember yesterday was all good at the evening. It is hard to come up with any conclusions if it is just a common thing that once in a day I got decreased values or there is something wrong with that.

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Message 10 of 12
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Re: Evening download and upload speed decrease.

Hey Fifi99, 

Thanks for your post and welcome to our community. 

Very sorry for the delay in getting back in touch, we have been busier than usual. 

Are you still having issues with the service now? 

I've tried to locate your account but have been unable to do so, so please let us know if you still need further help. 

Emma_C - Forum Team
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