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leicesterfan
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Message 1 of 12
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Intermittent Broadband Speeds

Hi All,

A thread that you've probably seen a million times before....

I 'upgraded' from 100Mbps to 200Mbps about 4 weeks ago. I have kept my eye on my broadband speeds and whilst I'll sometimes get speeds of 220Mbps, it often drops right down to 20Mbps. This interrupts me fairly regularly, e.g. Now TV will start to buffer and suffer a drop in picture quality, I'll notice slow downloads on my PS4 etc. Feel a bit short changed here!

There seems no pattern as to when this happens. I have experienced my top speeds at all times of day and similarly the slow periods have happened at peak times, but also first thing in the morning or late at night! I have tested on both Wi-Fi and through Ethernet and my speeds are consistent on both of these. Rebooting my hub does nothing. It just seems random as to when speeds will drop / improve again.

Edit: troubleshooting on the Virgin Connect app and check for faults in my area always comes up saying that everything is fine. 

Any help is appreciated - I think the 'done thing' is to post my stats. Here they are:

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leicesterfan
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Re: Intermittent Broadband Speeds

Downstream bonded channels

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

1331000000-5.238256 qam25
2267000000-4.238256 qam17
3275000000-4.538256 qam18
4283000000-4.538256 qam19
5291000000-4.738256 qam20
6299000000-4.738256 qam21
7307000000-4.938256 qam22
8315000000-538256 qam23
9323000000-538256 qam24
10371000000-6.537256 qam26
11379000000-6.537256 qam27
12387000000-6.537256 qam28
13395000000-6.538256 qam29
14403000000-6.737256 qam30
15411000000-6.537256 qam31
16419000000-6.738256 qam32
17427000000-6.738256 qam33
18435000000-6.938256 qam34
19443000000-738256 qam35
20451000000-6.738256 qam36
21459000000-6.538256 qam37
22467000000-6.438256 qam38
23475000000-6.438256 qam39
24483000000-6.238256 qam40



Downstream bonded channels

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

1Locked38.63780
2Locked38.62170
3Locked38.92310
4Locked38.92440
5Locked38.92920
6Locked38.63980
7Locked38.63590
8Locked38.63760
9Locked38.63970
10Locked37.67760
11Locked37.68060
12Locked37.66960
13Locked38.68180
14Locked37.66970
15Locked37.66740
16Locked38.67610
17Locked38.66460
18Locked38.66950
19Locked38.65810
20Locked38.64330
21Locked38.64030
22Locked38.63980
23Locked38.63800
24Locked38.93140
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leicesterfan
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Re: Intermittent Broadband Speeds

Upstream bonded channels

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

1394000004.9512064 qam2
2257999674.675512064 qam4
3462000004.95512064 qam1
4325999704.8512064 qam3


Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000

 

Network Log

Time Priority Description

15/07/2020 18:04:20noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2020 00:35:58criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/07/2020 00:13:40ErrorDHCP REBIND WARNING - Field invalid in response;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/07/2020 08:28:37ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/07/2020 02:51:14criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/07/2020 16:43:37ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/07/2020 15:05:58criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/07/2020 21:10:26noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/07/2020 16:07:24ErrorDHCP REBIND WARNING - Field invalid in response;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/07/2020 01:20:50ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/07/2020 13:09:3criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
05/07/2020 10:34:19ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/07/2020 23:13:40criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2020 22:10:22noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2020 21:46:50criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/06/2020 19:20:29ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2020 03:55:40criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/06/2020 17:42:26noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
22/06/2020 22:01:27criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
22/06/2020 01:23:45ErrorDHCP REBIND WARNING - Field invalid in response;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
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jpeg1
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Message 4 of 12
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Re: Intermittent Broadband Speeds

Most of your downstream channels are running at below the minimum specified signal levels. This may or may not be the whole answer to your problem, but it does need correcting.

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leicesterfan
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Message 5 of 12
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Re: Intermittent Broadband Speeds

Thanks. Have looked at another couple of logs today and no different.

Would I require a engineer visit?

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jpeg1
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Message 6 of 12
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Re: Intermittent Broadband Speeds

It's not something you can adjust yourself, but it does need correcting.

Your best bet is to hope that one of the VM staff on here picks this up and offers to help.

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Lee_R
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Message 7 of 12
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Re: Intermittent Broadband Speeds

Hi leicesterfan, thanks for posting and welcome to our community.

I am sorry you're having ongoing issues with your internet speeds. I would like to take a closer look. To enable me to do so I am going to send you a private message.  Please look out for the purple envelope in the top right of your screen.

Regards

 

Lee_R

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leicesterfan
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Re: Intermittent Broadband Speeds

Thanks, have sent you a PM.
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leicesterfan
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Message 9 of 12
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Re: Intermittent Broadband Speeds

Downstream bonded channels

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

1331000000-6.537256 qam25
2267000000-5.237256 qam17
3275000000-5.538256 qam18
4283000000-5.538256 qam19
5291000000-5.737256 qam20
6299000000-5.737256 qam21
7307000000-638256 qam22
8315000000-6.237256 qam23
9323000000-6.237256 qam24
10371000000-7.737256 qam26
11379000000-7.737256 qam27
12387000000-7.937256 qam28
13395000000-7.737256 qam29
14403000000-7.937256 qam30
15411000000-7.937256 qam31
16419000000-837256 qam32
17427000000-837256 qam33
18435000000-8.237256 qam34
19443000000-8.437256 qam35
20451000000-837256 qam36
21459000000-837256 qam37
22467000000-7.737256 qam38
23475000000-7.737256 qam39
24483000000-7.738256 qam40



Downstream bonded channels

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

1Locked37.65510
2Locked37.63220
3Locked38.63480
4Locked38.63790
5Locked37.34190
6Locked37.35420
7Locked38.65280
8Locked37.65400
9Locked37.65980
10Locked37.311730
11Locked37.312340
12Locked37.610780
13Locked37.611850
14Locked37.310330
15Locked37.310080
16Locked37.611430
17Locked37.69630
18Locked37.610410
19Locked37.38880
20Locked37.66910
21Locked37.65920
22Locked37.65920
23Locked37.65760
24Locked38.64650
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leicesterfan
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Message 10 of 12
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Re: Intermittent Broadband Speeds

Upstream bonded channels

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

1394000005512064 qam2
2258001124.8512064 qam4
3462000005.05512064 qam1
4325999704.9512064 qam3



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000
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