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Ruchir189
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Inconsistent Broadband Speeds

Hi Team,

Account number: [MOD EDIT: PERSONAL INFORMATION REMOVED]
Area reference: 22

I am observing a very drastic ups and down in my Virgin Media Broadband speed. I have M100 plan where the speed limit is 108 Mbps but sometimes it goes even more that 108 Mbps but most of the time I found its very low like under 10 Mbps which gives me lot of trouble during working from home and hamper my work.

I am using LAN cable in my desktop machine, so it shouldn't be a WiFi or Distance issue.

Hope you can access my router logs remotely to investigate on this issue or please let me know if  you need anything from my end.

Thanks and looking forward your response ASAP.

 

 [MOD EDIT: Personal and private information has been removed from this post. Please do not post personal or private information in your public posts. Please review the Forum Guidelines]

 

 

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gary_dexter
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Re: Inconsistent Broadband Speeds

Please post the network, upstream and downstream logs from the hub admin pages 


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Ruchir189
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Re: Inconsistent Broadband Speeds

Thanks a lot Gary for your prompt response.

Please find below logs as requested. Logs are exceeding in this message, so please see follow another message in continuation of this one.

Cable Modem StatusItem Status Comments

Acquired Downstream Channel (Hz)
402750000
Locked
Ranged Upstream Channel (Hz)
39400000
Locked
Provisioning State
Online

 

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

14027500006.438256 qam25
2186750000838256 qam7
31947500007.938256 qam8
42027500007.538256 qam9
52107500007.438256 qam10
62187500007.138256 qam11
72267500007.138256 qam12
82347500007.338256 qam13
92427500007.438256 qam14
102507500007.138256 qam15
11258750000738256 qam16
12266750000738256 qam17
132747500006.638256 qam18
142827500006.538256 qam19
152907500006.938256 qam20
162987500006.938256 qam21
173067500006.438256 qam22
183147500006.438256 qam23
193227500006.538256 qam24
204107500006.538256 qam26
214187500006.338256 qam27
224267500006.538256 qam28
234347500006.538256 qam29
244427500006.538256 qam30


Downstream bonded channels

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

1Locked38.9649327453
2Locked38.910321115749
3Locked38.910062214054
4Locked38.99633413834
5Locked38.69620316367
6Locked38.99479611573
7Locked38.99316712484
8Locked38.98937818493
9Locked38.98571314480
10Locked38.9848599208
11Locked38.98208411258
12Locked38.98122117710
13Locked38.9818995920
14Locked38.9833279226
15Locked38.98087213367
16Locked38.9829196440
17Locked38.9804177287
18Locked38.9797188666
19Locked38.67828712529
20Locked38.66380611611
21Locked38.9648193182
22Locked38.9625853847
23Locked38.6598926302
24Locked38.9572457405

 

Upstream bonded channels

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

1394000004.275512064 qam2
2462001204.3512064 qam1
3258001054.25512032 qam4
4326000334.275512064 qam3


Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000

 

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Ruchir189
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Re: Inconsistent Broadband Speed

Network Log

Time Priority Description

02/07/2020 21:38:13noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/07/2020 21:38:2Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/07/2020 07:43:32Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/07/2020 03:07:21criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2020 07:49:52Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2020 23:51:22criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2020 14:28:55Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2020 00:11:24criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
28/06/2020 08:10:31Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
28/06/2020 08:10:30criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
28/06/2020 00:56:31Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2020 11:47:36criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2020 11:45:1Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2020 02:24:32ErrorDHCP REBIND WARNING - Field invalid in response;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2020 02:06:13ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2020 00:59:13ErrorDHCP REBIND WARNING - Field invalid in response;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2020 00:47:56ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2020 00:06:43ErrorDHCP REBIND WARNING - Field invalid in response;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2020 22:47:39ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/06/2020 22:44:53Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

General Configuration

Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
cmreg-vmdg505-rtsl10016u-b.cm



Primary Downstream Service Flow

SFID233014
Max Traffic Rate117000047
Max Traffic Burst42600
Min Traffic Rate0


Primary Upstream Service Flow

SFID233013
Max Traffic Rate10500047
Max Traffic Burst16320
Min Traffic Rate0
Max Concatenated Burst16320
Scheduling TypeBestEffort
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Alex_RM
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Re: Inconsistent Broadband Speeds

Hi Ruchir189,

 

Thanks for posting, and sorry to see you're having some issues with the broadband speeds. 

 

The hub stats from here all look within the specifications we would expect. 

 

Can you confirm if your device has a gigabit NIC and if you're using a Cat6 Ethernet cable?

 

Alex_Rm

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