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Caderman
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how to check quality of signal reaching my virgin router

I’m constant having poor broadband, both wired and WiFi. Technical support don’t seem to be able  to help and can’t give a straight answer on what I should receive, and so considering switching. Before I do I’m trying to narrow down the problem. How do I check that the quality of internet signal my virgin router receives is in line with expectations. I’m on the 100mbs service

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gary_dexter
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Re: how to check quality of signal reaching my virgin router

Post the network, upstream and downstream logs from the hub admin pages 


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TheChairman
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Message 3 of 12
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Re: how to check quality of signal reaching my virgin router

Depending on your hardware. For Ethernet connection anything from around 95Mbps to just over 100 depending on whether you're using 100mb card or a 1 gig card. Wireless depends on the environment and also hardware so speeds there can vary a lot.

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Caderman
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Re: how to check quality of signal reaching my virgin router

Thanks - upstream and downstream info 

Router status

Upstream bonded channelsChannel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1537000005.1512032 qam2
2394000004.6512032 qam4
3462000004.8512032 qam3
4603000005.1512032 qam1

 

Router status

Downstream bonded channelsChannel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
12670000009.336256 qam17
22190000001037256 qam11
32270000009.637256 qam12
42350000009.837256 qam13
52430000009.436256 qam14
62510000009.437256 qam15
72590000009.437256 qam16
82750000009.537256 qam18
92830000009.437256 qam19
102910000009.537256 qam20
112990000009.937256 qam21
123070000009.437256 qam22
133150000009.937256 qam23
143230000009.837256 qam24
153470000009.137256 qam25
163550000009.137256 qam26
17363000000937256 qam27
183710000008.537256 qam28
193790000008.537256 qam29
203870000007.537256 qam30
21395000000837256 qam31
224030000008.537256 qam32
234110000008.437256 qam33
244190000008.137256 qam34


Downstream bonded channelsChannel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked36.6120345895
2Locked37.6180892948
3Locked37.3177493840
4Locked37.3156973809
5Locked36.6149624259
6Locked37.6125406162
7Locked37.3133034914
8Locked37.3118564357
9Locked37.3101745917
10Locked37.683165479
11Locked37.380505303
12Locked37.374856170
13Locked37.361236309
14Locked37.358386197
15Locked37.637557137
16Locked37.339657654
17Locked37.335606212
18Locked37.335796449
19Locked37.330956666
20Locked37.633904361
21Locked37.338936441
22Locked37.340766767
23Locked37.637026802
24Locked37.336925470
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Caderman
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Message 5 of 12
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Re: how to check quality of signal reaching my virgin router

Thanks for responding, yes I understand that's the strength of broadband I could get in my home. I'm tying to understand the strength of signal reaching my router from Virgin. 

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jbrennand
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Re: how to check quality of signal reaching my virgin router

In your browser’s URL box type in http://192.168.0.1 (or http://192.168.100.1 - if in modem mode) and hit return. On the first page up [there should be no need to login if you have done so before] click on the “router status” icon at top right (SH2’s) or text at bottom-middle of first page up (Hub3) and then copy/paste 3 FULL sets of data onto here – from the Downstream, Upstream, & Network Logs pages. Don't worry too much about the formatting it can be easily read & DON’T include personal data or MAC addresses - blank them out - if you copy/paste the data, the board software will do this for you (you may need to click the "submit" button a second time).

--------------------
John
--------------------

I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
Caderman
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Message 7 of 12
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Re: how to check quality of signal reaching my virgin router

Thanks for responding , info below

Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
12670000009.336256 qam17
22190000001037256 qam11
32270000009.637256 qam12
42350000009.837256 qam13
52430000009.436256 qam14
62510000009.437256 qam15
72590000009.437256 qam16
82750000009.537256 qam18
92830000009.437256 qam19
102910000009.537256 qam20
112990000009.937256 qam21
123070000009.437256 qam22
133150000009.937256 qam23
143230000009.837256 qam24
153470000009.137256 qam25
163550000009.137256 qam26
17363000000937256 qam27
183710000008.537256 qam28
193790000008.537256 qam29
203870000007.537256 qam30
21395000000837256 qam31
224030000008.537256 qam32
234110000008.437256 qam33
244190000008.137256 qam34


Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked36.6120345895
2Locked37.6180892948
3Locked37.3177493840
4Locked37.3156973809
5Locked36.6149624259
6Locked37.6125406162
7Locked37.3133034914
8Locked37.3118564357
9Locked37.3101745917
10Locked37.683165479
11Locked37.380505303
12Locked37.374856170
13Locked37.361236309
14Locked37.358386197
15Locked37.637557137
16Locked37.339657654
17Locked37.335606212
18Locked37.335796449
19Locked37.330956666
20Locked37.633904361
21Locked37.338936441
22Locked37.340766767
23Locked37.637026802
24Locked37.336925470

 

Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1537000005.1512032 qam2
2394000004.6512032 qam4
3462000004.8512032 qam3
4603000005.1512032 qam1

 

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Caderman
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Message 8 of 12
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Re: how to check quality of signal reaching my virgin router

Thanks , upload and downloads already posted- network log below

Network Log

Network Log

Time

Priority

Description

30/06/2020 12:29:41

notice

LAN login Success;CM- CM-QOS=1.1;CM-VER=3.0;

28/06/2020 17:07:45

notice

DHCP Renew - lease parameters tftp file-cmreg-vmdg505-rtsl10016u-b.cm modified;CM-;CM-QOS=1.1;CM-VER=3.0;

28/06/2020 17:07:45

Error

DHCP REBIND WARNING - Field invalid in response;CM-;CM-QOS=1.1;CM-VER=3.0;

28/06/2020 13:11:57

Error

DHCP RENEW sent - No response for IPv4;CM- CM-QOS=1.1;CM-VER=3.0;

28/06/2020 11:39:59

notice

LAN login Success;CM-;CM-QOS=1.1;CM-VER=3.0;

28/06/2020 01:24:45

Error

DHCP RENEW sent - No response for IPv4;CM-;CM-QOS=1.1;CM-VER=3.0;

27/06/2020 17:35:15

critical

No Ranging Response received - T3 time-out;CM- CM-QOS=1.1;CM-VER=3.0;

27/06/2020 13:23:54

notice

LAN login Success;CM- CM-QOS=1.1;CM-VER=3.0;

27/06/2020 09:42:40

critical

No Ranging Response received - T3 time-out;CM-;CM-QOS=1.1;CM-VER=3.0;

27/06/2020 09:41:49

Error

DHCP RENEW sent - No response for IPv4;CM-;CM-QOS=1.1;CM-VER=3.0;

26/06/2020 18:50:30

notice

LAN login Success;CM-;CM-QOS=1.1;CM-VER=3.0;

26/06/2020 01:46:3

critical

No Ranging Response received - T3 time-out;CM-;CM-QOS=1.1;CM-VER=3.0;

24/06/2020 22:24:29

Warning!

RCS Partial Service;CM-;CM-QOS=1.1;CM-VER=3.0;

24/06/2020 22:24:29

critical

SYNC Timing Synchronization failure - Loss of Sync;CM-;CM-QOS=1.1;CM-VER=3.0;

24/06/2020 22:06:9

Warning!

RCS Partial Service;CM- =CM-QOS=1.1;CM-VER=3.0;

24/06/2020 22:06:8

critical

SYNC Timing Synchronization failure - Loss of Sync;CM-;CM-QOS=1.1;CM-VER=3.0;

24/06/2020 22:06:7

Warning!

RCS Partial Service;CM- CM-QOS=1.1;CM-VER=3.0;

24/06/2020 22:06:7

critical

SYNC Timing Synchronization failure - Loss of Sync;CM- CM-QOS=1.1;CM-VER=3.0;

24/06/2020 21:48:58

Warning!

RCS Partial Service;CM-;CM-QOS=1.1;CM-VER=3.0;

24/06/2020 21:48:58

critical

SYNC Timing Synchronization failure - Loss of Sync;CM-;CM-QOS=1.1;CM-VER=3.0;

 

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Andrew-G
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Message 9 of 12
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Re: how to check quality of signal reaching my virgin router

Your downstream power levels are right at the upper limit of acceptability, and two of your downstream channels are too high.  Both up and down power levels needs sorting.  Your network log confirms that your connection is unstable.

That'll probably need a technician visit to fix.  No point phoning VM's technical support team, as you've found that is a waste of your time.  Best to hold on here (can take a day or two) and the VM forum staff can advise on next steps.  Don't let anybody tell you they'll "send you out a new hub" because that won't fix it - the data recorded by VM's own equipment shows the problem is the line quality between the hub and VM network. 

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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Caderman
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Re: how to check quality of signal reaching my virgin router

Thanks a lot , that’s very helpful. 

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