Virgin Media Community

[lojelo5]

Been watching this now since the last software update on Wed 15/02/2023 my upload is perfectly fine but my download is getting worse by the day.

Stats look fine, but internet is crawling downloads are so slow

3.0 Downstream channels
Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	139000000	3.9	40.4	QAM256	1
2	147000000	4	40.9	QAM256	2
3	155000000	3.9	40.9	QAM256	3
4	163000000	3.5	40.9	QAM256	4
5	171000000	3.4	40.4	QAM256	5
6	179000000	3.3	40.4	QAM256	6
7	187000000	3.3	40.4	QAM256	7
8	195000000	3	40.9	QAM256	8
9	203000000	2.8	40.9	QAM256	9
10	211000000	2.7	40.4	QAM256	10
11	219000000	2.5	40.4	QAM256	11
12	227000000	2.3	40.4	QAM256	12
13	235000000	2	40.4	QAM256	13
14	243000000	1.7	40.4	QAM256	14
15	251000000	1.5	40.4	QAM256	15
16	259000000	1.8	40.9	QAM256	16
17	267000000	2.2	40.9	QAM256	17
18	275000000	2.3	40.4	QAM256	18
19	283000000	2.2	40.9	QAM256	19
20	291000000	2.1	40.4	QAM256	20
21	299000000	2	40.4	QAM256	21
22	307000000	2.2	40.4	QAM256	22
23	315000000	2	40.4	QAM256	23
24	323000000	1.9	40.9	QAM256	24
25	331000000	1.7	40.4	QAM256	25
26	339000000	1.7	40.4	QAM256	26
27	347000000	1.9	40.9	QAM256	27
28	355000000	2.1	40.4	QAM256	28
29	363000000	1.8	40.9	QAM256	29
30	371000000	1.3	40.4	QAM256	30
31	379000000	0.5	40.9	QAM256	31


3.0 Downstream channels
Channel	Lock Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	40.366287	0	0
2	Locked	40.946209	0	0
3	Locked	40.946209	0	0
4	Locked	40.946209	0	0
5	Locked	40.366287	0	0
6	Locked	40.366287	0	0
7	Locked	40.366287	0	0
8	Locked	40.946209	0	0
9	Locked	40.946209	0	0
10	Locked	40.366287	0	0
11	Locked	40.366287	0	0
12	Locked	40.366287	0	0
13	Locked	40.366287	0	0
14	Locked	40.366287	0	0
15	Locked	40.366287	0	0
16	Locked	40.946209	0	0
17	Locked	40.946209	0	0
18	Locked	40.366287	0	0
19	Locked	40.946209	0	0
20	Locked	40.366287	0	0
21	Locked	40.366287	0	0
22	Locked	40.366287	0	0
23	Locked	40.366287	0	0
24	Locked	40.946209	0	0
25	Locked	40.366287	0	0
26	Locked	40.366287	0	0
27	Locked	40.946209	0	0
28	Locked	40.366287	0	0
29	Locked	40.946209	0	0
30	Locked	40.366287	0	0
31	Locked	40.946209	0	0


3.1 Downstream channels
Channel	Channel Width (MHz)	FFT Type	Number of Active Subcarriers	Modulation (Active Profile)	First Active Subcarrier (Hz)
159	96	4K	1840	QAM4096	759


3.1 Downstream channels
Channel ID	Lock Status	RxMER Data (dB)	PLC Power (dBmV)	Correcteds (Active Profile)	Uncorrectables (Active Profile)
159	Locked	43	-0.9	6840368	0

3.0 Upstream channels
Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	43100000	50	5120 KSym/sec	QAM64	2
2	23600000	48.5	5120 KSym/sec	QAM64	5
3	30100000	49	5120 KSym/sec	QAM64	4
4	36600000	49.5	5120 KSym/sec	QAM64	3
5	49600000	50.5	5120 KSym/sec	QAM64	1


3.0 Upstream channels
Channel	Channel Type	T1 Timeouts	T2 Timeouts	T3 Timeouts	T4 Timeouts
1	ATDMA	0	0	0	0
2	ATDMA	0	0	0	0
3	ATDMA	0	0	0	0
4	ATDMA	0	0	0	0
5	ATDMA	0	0	0	0


3.1 Upstream channels
Channel	Channel Width (MHz)	Power (dBmV)	FFT Type	Modulation
6	10.0	45.0	2K	QAM128


3.1 Upstream channels
Channel	Channel Type	Number of Active Subcarriers	First Active Subcarrier (Hz)	T3 Timeouts	T4 Timeouts
6	OFDMA	200	53.9	0	0

General Configuration
Network access	
true
Maximum Number of CPEs	
1
Baseline Privacy	
true
DOCSIS Mode	
3.1
Config file	
54k;fg87dsfd;kfoA,.iyewrk


Primary Downstream Service Flow
SFID	
540
Max Traffic Rate	
1200000450
Max Traffic Burst	
42600
Min Traffic Rate	
0


Primary Upstream Service Flow
SFID	
539
Max Traffic Rate	
55000270
Max Traffic Burst	
42600
Min Traffic Rate	
0
Max Concatenated Burst	
16320
Scheduling Type	
bestEffort

Network Log
Time	Priority	Description
Sun 26/02/2023
23:24:36	6	US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 26/02/2023
23:24:19	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 26/02/2023
02:17:21	5	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 26/02/2023
02:17:04	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 25/02/2023
14:38:01	6	DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 25/02/2023
14:38:01	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 23/02/2023
06:45:07	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 23/02/2023
02:39:57	6	US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 23/02/2023
02:39:38	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 23/02/2023
02:39:32	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 23/02/2023
02:38:18	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 23/02/2023
02:38:17	5	B-INIT-RNG Failure - Retries exceeded;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 23/02/2023
02:37:08	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 23/02/2023
02:36:48	4	Missing Mandatory MDD TLV on primary DS Channel;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 23/02/2023
00:21:39	3	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 23/02/2023
00:20:29	5	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 23/02/2023
00:20:24	3	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue 21/02/2023
23:16:04	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue 21/02/2023
02:36:38	6	DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue 21/02/2023
02:36:38	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 18/02/2023
16:55:37	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 17/02/2023
17:40:14	6	DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 17/02/2023
17:40:14	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 17/02/2023
00:42:50	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 16/02/2023
02:51:12	6	US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 16/02/2023
02:51:12	5	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 16/02/2023
02:50:54	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 15/02/2023
01:17:05	6	US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 15/02/2023
01:16:48	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 15/02/2023
01:14:03	6	SW download Successful - Via NMS
Wed 15/02/2023
01:03:26	6	SW Download INIT - Via NMS
Mon 13/02/2023
22:33:34	6	US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 13/02/2023
22:33:34	5	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 13/02/2023
22:33:18	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 13/02/2023
03:29:27	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 12/02/2023
21:26:49	6	DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 12/02/2023
21:26:48	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 10/02/2023
03:09:59	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 09/02/2023
23:24:19	6	US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 09/02/2023
23:24:19	5	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 09/02/2023
23:24:04	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 09/02/2023
13:43:29	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 08/02/2023
19:29:38	6	DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 08/02/2023
19:29:38	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 05/02/2023
09:30:34	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 05/02/2023
08:42:11	6	DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 05/02/2023
08:42:10	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 03/02/2023
03:37:18	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 02/02/2023
00:07:43	6	US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 02/02/2023
00:07:30	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;

My best speed

[lojelo5]

Sorry for the double post I missed a graph out.

[Client62]

The Ubuntu down load looks decent at 90 Mega-bytes per second i.e. 720 Mega-bits per second, a result close to the Real speed test.

To improve the 720 to the max of about 930 on a 1Gb/s link start looking at the computer software, over weight security packages and software firewalls / safe browsing tools can reduce network performance.  See if the latest network driver might help tease out a little more.

A good first test to see what could be possible is to Restart the Computer in Safe Mode + Networking and re-run the Realspeed test.

If there is minimal change it is already close to the best configuration,  if there is a worthwhile speed increase it shows what is possible.

 

[lojelo5]

@ Client62

I have done all the test, I don't have any anti-virus installed.

Like I have said this only started the day I had the latest software installed, I don't usually go on any browser speedtest results I  only put them in here because I know people would ask for them. I normally test my speeds on multiple download sites to test my speeds, the unbuntu test was probably my best download .

Things seem to have gone back to normal today but these speeds after 12 are a bit on the slow side especially for a 1gb connection.

my network card, before you ask

[Robert_P]

Hi lojelo5

Sorry to hear of the broadband speed fluctuation, we appreciate you raising this via the forums.

From checking we can see the speeds have fluctuated over the last few days, at present a speed test has completed at 1143mbs download and 46mbs upload. Zero packet loss, 12ms latency and minimal jitter, all of the levels appear to be within the levels and ranges we'd expect to see.

It has been a few days since your post, have you noticed any improvements over the last couple of days?

Rob

[lojelo5]

You will always see 1143mbs speeds on your end, but on my end on any PC the download speeds are still fluctuating.

The upload speed is perfectly fine It's the download speed that I am bothered about at the moment, even using a download manager the speed starts off fine then just drops dramatically. When downloading I used to get a constant 123MB/sec since the last software update it's all over the place starting out fast then just dropping and dropping which is getting very annoying when trying to download files over 100GB in size.

[Paulina_Z]

Hi @lojelo5,

Thanks for coming back to us about this issue. Sorry to hear that your speeds are still fluctuating. Have you taken a look at our Minimum Speeds page to see what you should be expecting on your package? 

You can also take a look at our Speed Up page to see if this can help change a few things to improve your speeds. 

Have you recently rebooted your Hub to see if this can help improve your speeds. I've taken another look at our systems, and I cannot see any issues with your upload or download power levels.

Please let us know if there's anything further we can assist with, we'll be more than happy to. 🙂

Thank you! 

[lojelo5]

Thanks for the advice Paulina but I know how things work.

Like I have said previously I haven't noticed any issues myself within the hub all my PC's are working fine but this still doesn't say something is wrong maybe high utilization in my area!! 

Something is wrong because I have just done 2 speedtest you can clearly see something is wrong, there are a few post re this issue of 1GB dropping down to 90mb. I have tested my cables and nothing has changed 

I haven't rebooted the hub and just done 2 more test and again it's gone back up but still far away from what I had before the last software update, this is when all these issues have started from.

[legacy1]

Check your link speed when downloading you seem to be at 100Mb

[lojelo5]

I had 2 speedtest results at 93Mb, the IDM transfer download speed was @ 12.3Mb