Slow upload in Cambridge, previous thread marked as solved but unfortunately not!

[predgington]

A recap...

Recent work done in the area after which download and latency fine but upload speed was awful <2  when should have be >25 or so. All connections appear to be okay and have had a VM engineer visit in the last few months who replaced filters etc that has previously been giving us problems and the whole setup was thoroughly checked at the time.

Followed a suggestion about resetting the modem. Initially no change but checked a bit later and all modulations 64 and speed back to normal. 

However just checked again and speed back to <2 and the modem shows the following in the upload section:

Upstream bonded channels

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

1	46199967	45.5	5120	16 qam	1
2	32599863	45.5	5120	16 qam	3
3	25800854	45.5	5120	16 qam	4
4	39399834	45.3	5120	32 qam	2

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	ATDMA	0	0	1	0
2	ATDMA	0	0	0	0
3	ATDMA	0	0	0	0
4	ATDMA	0	0	0	0

I am assuming at this point I need to get in contact VM as resetting the modem has obviously not fixed the problem unless anyone can suggest something else?

[predgington]

Download and log for completeness

Downstream bonded channels

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

1	139000000	4.5	38	256 qam	1
2	147000000	4.1	38	256 qam	2
3	155000000	4	38	256 qam	3
4	163000000	3.5	37	256 qam	4
5	171000000	3.5	38	256 qam	5
6	179000000	3.5	38	256 qam	6
7	187000000	3.2	38	256 qam	7
8	195000000	2.9	38	256 qam	8
9	203000000	2.5	38	256 qam	9
10	211000000	2	38	256 qam	10
11	219000000	1.7	38	256 qam	11
12	227000000	1.5	37	256 qam	12
13	235000000	1.2	37	256 qam	13
14	243000000	1	37	256 qam	14
15	251000000	0.9	37	256 qam	15
16	259000000	0.7	37	256 qam	16
17	267000000	1.2	38	256 qam	17
18	275000000	1.5	37	256 qam	18
19	283000000	1.7	38	256 qam	19
20	291000000	1.7	37	256 qam	20
21	299000000	2.2	37	256 qam	21
22	307000000	2	37	256 qam	22
23	315000000	2	37	256 qam	23
24	323000000	2	37	256 qam	24

Downstream bonded channels

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

1	Locked	38.6	18	0
2	Locked	38.6	25	0
3	Locked	38.6	23	0
4	Locked	37.6	9	0
5	Locked	38.6	9	0
6	Locked	38.9	8	0
7	Locked	38.9	5	0
8	Locked	38.9	5	0
9	Locked	38.6	7	0
10	Locked	38.9	11	0
11	Locked	38.6	4	0
12	Locked	37.6	9	0
13	Locked	37.6	9	0
14	Locked	37.6	8	0
15	Locked	37.6	19	0
16	Locked	37.6	14	0
17	Locked	38.6	11	0
18	Locked	37.6	10	0
19	Locked	38.6	13	0
20	Locked	37.6	10	0
21	Locked	37.3	10	0
22	Locked	37.6	16	0
23	Locked	37.6	15	0
24	Locked	37.6	21	0

Network Log

Time Priority Description

22/08/2021 08:24:2	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:35	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
22/08/2021 07:59:52	Warning!	LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/08/2021 09:35:7	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/08/2021 09:34:6	critical	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=3.0;
19/08/2021 09:29:44	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/08/2021 09:29:40	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/08/2021 09:29:40	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/08/2021 09:29:40	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/08/2021 09:29:39	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 16:59:51	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 03:41:9	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/08/2021 04:59:50	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/08/2021 04:25:52	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/08/2021 04:29:47	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/08/2021 17:44:26	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
31/07/2021 04:29:46	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
28/07/2021 06:00:20	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/07/2021 16:29:45	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/07/2021 06:00:44	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[jpeg1]

Those upload stats show that something is seriously wrong. You need a technician visit to check out the connection. 

[predgington]

Phoned 150 and got a recorded message about trying to fix a problem in our area though on my virgin media it claims there are no problems with the broadband in my area and running the broadband test reports no issues?

[jpeg1]

Have you tried the local check number?  0800 561 0061. 

[predgington]

Get the same message about "sorry you are suffering intermittent problems with the broadband and tv in your area, engineers are working hard to fix it but as its a complicated issue it taking longer to fix". I assume this is the standard message they use to cover a number of problems as having no problem with the TV and the broadband upload speed problem is not really intermittent.

[jpeg1]

Unfortunately then you'll have to wait as they won't do anything for you until that's done. 

Keep checking that number until the work is done.  Then restart the Hub and check the levels again.