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plynch66
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Gig1 Speed Issue

Hi,

I have had the Gig1 service for over 6 months and it has been without doubt the best Internet service I've ever had...... until last week that is.

I used to consistently achieve downloads speeds of 1 or even 1.1Gbps according to various speed test sites such as Fast.com

However, for the last 10 days or so I've struggled to get even half that.

I've tried various speed test sites (including this one - https://www.samknows.com/realspeed/) and I sometimes see download speeds less than 400Mbps. This is the result of the Real Sam Knows test I ran just now :

SamKNows.png

I've also set up a Think Broadband Monitor which is hopefully visible here :

https://www.thinkbroadband.com/broadband/monitoring/quality/share/9b33e315fe32b8dfebfd805a8c90904fc3... 

Can anyone help shed light on this ? Is there any other information I should provide ?

Thanks,

Paul

 

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plynch66
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Message 2 of 15
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Re: Gig1 Speed Issue

Additional info from my Hub4 

 

3.0 Downstream channels

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

253307500005.69999740.366287QAM25625
11387500005.69999740.946209QAM2561
21467500005.80000340.946209QAM2562
31547500005.69999740.946209QAM2563
41627500005.40000240.946209QAM2564
51707500005.09999840.946209QAM2565
61787500005.00000040.366287QAM2566
71867500005.00000040.366287QAM2567
81947500005.09999840.946209QAM2568
92027500005.19999740.366287QAM2569
102107500005.30000340.946209QAM25610
112187500005.50000040.946209QAM25611
122267500005.50000040.366287QAM25612
132347500005.59999840.366287QAM25613
142427500005.59999840.946209QAM25614
152507500005.69999740.946209QAM25615
162587500005.50000040.366287QAM25616
172667500005.09999840.946209QAM25617
182747500005.09999840.366287QAM25618
192827500005.19999740.946209QAM25619
202907500005.59999840.946209QAM25620
212987500005.80000340.366287QAM25621
223067500005.80000340.366287QAM25622
233147500005.80000340.946209QAM25623
243227500005.69999740.366287QAM25624
263387500005.69999740.366287QAM25626
273467500005.80000340.366287QAM25627
283547500005.80000340.946209QAM25628
293627500006.00000040.946209QAM25629
303707500005.90000240.946209QAM25630
313787500005.80000340.946209QAM25631
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plynch66
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Message 3 of 15
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Re: Gig1 Speed Issue

3.0 Downstream channels

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

25Locked40.36628720
1Locked40.94620900
2Locked40.94620900
3Locked40.94620920
4Locked40.94620900
5Locked40.94620900
6Locked40.36628700
7Locked40.36628710
8Locked40.94620900
9Locked40.36628700
10Locked40.94620900
11Locked40.94620900
12Locked40.36628700
13Locked40.36628700
14Locked40.94620900
15Locked40.94620900
16Locked40.36628700
17Locked40.94620900
18Locked40.36628700
19Locked40.94620900
20Locked40.94620900
21Locked40.36628700
22Locked40.36628700
23Locked40.94620900
24Locked40.36628700
26Locked40.36628700
27Locked40.36628700
28Locked40.94620900
29Locked40.94620900
30Locked40.94620900
31Locked40.94620900



3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
159964K1880QAM4096759


3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
159Locked424.1266220710
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plynch66
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Message 4 of 15
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Re: Gig1 Speed Issue

3.0 Upstream channels

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

14620000040.0205995120 KSym/sec64QAM11
23940000040.0205995120 KSym/sec64QAM12
35370000039.7705995120 KSym/sec64QAM10
46030000040.0205995120 KSym/sec64QAM9



3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1US_TYPE_STDMA0000
2US_TYPE_STDMA0000
3US_TYPE_STDMA0000
4US_TYPE_STDMA0000
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plynch66
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Message 5 of 15
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Re: Gig1 Speed Issue

General Configuration

Network access
true
Maximum Number of CPEs
1
Baseline Privacy
true
DOCSIS Mode
3.1
Config file
69834ncxv9873254k;fg87dsf



Primary Downstream Service Flow

SFID
852
Max Traffic Rate
1200000450
Max Traffic Burst
42600
Min Traffic Rate
0



Primary Upstream Service Flow

SFID
851
Max Traffic Rate
55000270
Max Traffic Burst
42600
Min Traffic Rate
0
Max Concatenated Burst
16320
Scheduling Type
bestEffort
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Adduxi
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Message 6 of 15
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Re: Gig1 Speed Issue

Check with Area faults on 0800 561 0061 or if you have a VM landline 150 as local faults are not shown on VM's status page. 

Also post your network log for comment, as I can't see anything amiss with the power levels etc.  The "sawtooth" BQM is odd however?

It may be worth while to do a full 60 second pin hole reset on the Hub.  Do NOT reboot the Hub afterwards, just let it do it's thing.  You will need to make sure the passwords are legible on the bottom of the Hub as these are needed after the reset.

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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jbrennand
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Message 7 of 15
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Re: Gig1 Speed Issue

Are you in modem mode by any chance. If so what Router are you using and what devices re plugged into it on ethernet cables?

If not, what devices re plugged into the Hub4 on ethernet cables?

--------------------
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.
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plynch66
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Message 8 of 15
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Re: Gig1 Speed Issue

Hi John,

Thanks for replying. No, I'm not in Modem Mode, just the standard Router Mode. The only device connected to the Hub via ethernet is the PC I'm typing this reply on now. The Hub4 is on my window ledge and the PC has about 3 feet of CAT5 cable connecting it to the Hub.

The odd things is that my results from various speed tests are all over the place whereas they used to be consistently hitting the 1Gbps or even 1.1Gbps mark every single time - this behaviour was consistent for a good 6 months or so and only changed in the last few weeks.

I haven't made any changes which would affect the WAN side of my connection but I have obviously had various Windows (and Dell) updates installed during this time - but that was also true of the previous 6 months so I'm suspecting that there must be a fault on either the Hub or the WAN side of my connection. 

What do you think ? Also, and apologies if you can't answer this, can I expect a response on this forum from a representative of VM Tech Support ? I've seen various other threads where people have had a response and even an engineer callout.

Thanks again,

Paul

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plynch66
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Re: Gig1 Speed Issue

Hi,

Thanks for replying.

When I browse to the Hub I can see a 'Check router status' link which I can get to without having to authenticate. There I can see a 'Networklog' tab - is this the log you are referring to ? Is there any difference between this log and the one you get to see if you actually log into the router ?

Thanks,

Paul

Network Log

Time Priority Description

Mon Sep 20 07:48:55 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Sep 20 07:48:55 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Sep 23 19:48:56 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Sep 23 19:48:56 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri Sep 24 18:42:05 20213No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Sep 27 07:48:56 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Sep 27 07:48:56 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue Sep 28 03:29:18 20213No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Sep 30 19:48:57 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Sep 30 19:48:57 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Sep 30 21:41:56 20213No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Oct 4 07:48:57 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Oct 4 07:48:57 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue Oct 5 12:37:56 20213No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Oct 7 19:48:58 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Oct 7 19:48:58 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun Oct 10 04:15:31 20213No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Oct 11 07:48:59 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Oct 11 07:48:59 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Oct 14 19:49:00 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Oct 14 19:49:00 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat Oct 16 11:03:21 20213No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Oct 18 07:49:01 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Oct 18 07:49:01 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed Oct 20 10:44:08 20213No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Oct 21 19:49:02 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu Oct 21 19:49:02 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Oct 25 07:49:03 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Oct 25 07:49:03 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed Oct 27 16:44:15 20215MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed Oct 27 16:44:36 20216CM-STATUS message sent. Event Type Code: 3; Chan ID: N/A; DSID: 688056; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri Oct 29 11:25:32 20213No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat Oct 30 00:16:52 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat Oct 30 00:16:52 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat Oct 30 14:48:34 20213No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Nov 1 22:33:17 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon Nov 1 22:33:17 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed Nov 3 11:32:17 20215MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun Nov 7 03:57:05 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun Nov 7 03:57:05 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun Nov 7 15:27:34 20215MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue Nov 9 15:33:04 20213No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed Nov 10 01:30:21 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed Nov 10 01:30:21 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri Nov 12 02:49:22 20213No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat Nov 13 13:30:22 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat Nov 13 13:30:22 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed Nov 17 01:30:22 20214DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed Nov 17 01:30:22 20216DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed Nov 17 09:11:39 20215MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
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jbrennand
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Message 10 of 15
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Re: Gig1 Speed Issue


@plynch66 wrote:

Hi John,

the PC has about 3 feet of CAT5 cable connecting it to the Hub.

Paul


Two things - do you mean Cat5 cable - that departed on the Ark.  Or is it Cat5e?  If Cat5 change it now - even if it is Cat5e it might have gone faulty - I would use Cat6a.

Second Dell updates notoriously install things like "SmartByte" which partitions connection speeds.  Disable that and see what happens


--------------------
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.
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