No Upload Speed, or very low.

[Fedup01]

Ok.
So I posted yesterday, because we realised that the wi-fi was turning itself back on, each time I turned it off. Later that day, we found we could not access Netflix, Amazon or you tube on the TV. I then used the Computer/Desktop PC and found I could not connect to e-mail, banks, Steam / Xbox, etc. Steam I understand said repeatedly the connection was unstable, and issued time out bans, for the constant disconnections. (This is all Ethernet, not Wi-fi to devices).

The hub said “Partial service (DS only)”. I rebooted and reset the Hub 3. I checked all the cables. The set-up has been in place for nearly 04 years, and where the hub is placed means no one can get near the cables in general.

I ran a speed test last night (https://www.speedtest.net). It said the upstream was zero, or at best between 0 and 1 (mostly I get “Upload test error”. It does randomly get back up to say 7-8, but only for short durations making it useless. (Whereas it was 20 before). The downstream is dropping frequently to 20-40, but can get back to the normal 80-120. (We pay for 200). The ping is shifting from 20-250, (normally stable around 15-40).

The computer and TV connection to the internet are unusable now on this basis. I think the inability to turn off wi-fi could well relate to the zero up steam issue. The bank and online supermarket wanted me to change password after a few failed attempts where it timed out. I could then not change the password, I assume because of the lack of up-stream. I couldn’t change or cancel the shopping order for today. When I ran the system check on VM, the first 02 times it failed to complete (just spun around for over 30 minutes). It then passed with no errors in a few minutes. On another try it  ended with a yellow box, that said there were Network errors. I could not tell though, if that meant mine or Virgin Media.

So, yesterdayI reboot, reset, factory reset, multiple times. I checked all the cables for connection and tightness. I put the hub in modem mode. It made no difference. I then reset with a pin to factory settings, which is where it now is. I also as a trial, removed the PC cables from the rooter. The problem persisted on the TV. I then removed the TV and had issues on the PC. I changed the cables around and swapped the cables otthe TV and PC to no change.

I am hoping it’s a temporary or local issue. Here are the logs from last night, hours after the reset, reboot, pin reset, etc. (Sometimes I can’t log into the hub or run diagnostics).

As a random note, if I refresh the connected devices, the number can change from 1-3. (Even though all 3 items are connected at the time). Sometimes the PC is not there (even as I am looking at the hub data on it), Sometimes the TV is gone, (but on), and sometimes the TiVo box.

I am housebound and don't have a mobile. My partner works from home, but cannot access her employer.

Network Log

Time	Priority	Description
24/08/2021 23:14:24	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 23:11:58	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 23:11:56	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 23:11:9	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 23:10:14	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 23:05:8	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:58:40	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:56:22	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:54:4	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:48:7	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:38:21	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:37	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:30:17	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:29:55	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:29:12	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:20:1	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:19:39	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:18:23	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:17:12	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 22:15:27	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

This seems to be typical over the hours. Its the same sort of thing this morning. What should i do next?

[Fedup01]

Upstream bonded channels

Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	32600000	51	5120	64 qam	5
2	53699981	51	5120	64 qam	2
3	46200000	51	5120	32 qam	3
4	39399961	51	5120	64 qam	4

Upstream bonded channels

Channel	Channel Type	T1 Timeouts	T2 Timeouts	T3 Timeouts	T4 Timeouts
1	ATDMA	0	0	2	0
2	ATDMA	0	0	0	0
3	ATDMA	0	0	0	0
4	ATDMA	0	0	0	0

Downstream bonded channels

Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	139000000	-3.7	37	256 qam	1
2	147000000	-3.9	37	256 qam	2
3	155000000	-5.2	37	256 qam	3
4	163000000	-5.5	37	256 qam	4
5	171000000	-5.2	37	256 qam	5
6	179000000	-5	37	256 qam	6
7	187000000	-5.2	37	256 qam	7
8	195000000	-5.7	37	256 qam	8
9	203000000	-6	37	256 qam	9
10	211000000	-5.9	37	256 qam	10
11	219000000	-5.7	37	256 qam	11
12	227000000	-6.2	37	256 qam	12
13	235000000	-6.9	37	256 qam	13
14	243000000	-7.5	37	256 qam	14
15	251000000	-7	37	256 qam	15
16	259000000	-6.2	37	256 qam	16
17	267000000	-5.7	37	256 qam	17
18	275000000	-6	37	256 qam	18
19	283000000	-6.4	37	256 qam	19
20	291000000	-6.9	37	256 qam	20
21	299000000	-6.7	37	256 qam	21
22	307000000	-6	37	256 qam	22
23	315000000	-5.2	37	256 qam	23
24	323000000	-4.7	37	256 qam	24

Downstream bonded channels

Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	37.3	51915	107970
2	Locked	37.6	105846	11534
3	Locked	37.3	66826	61029
4	Locked	37.3	54227	80359
5	Locked	37.6	12685	2495
6	Locked	37.6	1342	759
7	Locked	37.6	4925	2011
8	Locked	37.3	3929	4071
9	Locked	37.6	3892	2830
10	Locked	37.6	1569	808
11	Locked	37.6	2513	797
12	Locked	37.6	4622	2338
13	Locked	37.6	4114	2581
14	Locked	37.3	3060	58
15	Locked	37.3	290	17
16	Locked	37.3	2667	390
17	Locked	37.3	2268	1815
18	Locked	37.6	3891	1080
19	Locked	37.3	582	0
20	Locked	37.3	165	0
21	Locked	37.3	93	0
22	Locked	37.6	58	0
23	Locked	37.6	201	0
24	Locked	37.6	583	2

General Configuration

Network access	Allowed
Maximum Number of CPEs	1
Baseline Privacy	Enabled
DOCSIS Mode	Docsis30
Config file	cmreg-vmdg505-bbt060-b.cm

Primary Downstream Service Flow

SFID	134630
Max Traffic Rate	230000061
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	134629
Max Traffic Rate	22000061
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	42600
Scheduling Type	BestEffort

[Fedup01]

Upstream bonded channels

Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	32600000	51	5120	64 qam	5
2	53699981	51	5120	64 qam	2
3	46200000	51	5120	32 qam	3
4	39399961	51	5120	64 qam	4

Upstream bonded channels

Channel	Channel Type	T1 Timeouts	T2 Timeouts	T3 Timeouts	T4 Timeouts
1	ATDMA	0	0	2	0
2	ATDMA	0	0	0	0
3	ATDMA	0	0	0	0
4	ATDMA	0	0	0	0

Downstream bonded channels

Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	139000000	-3.7	37	256 qam	1
2	147000000	-3.9	37	256 qam	2
3	155000000	-5.2	37	256 qam	3
4	163000000	-5.5	37	256 qam	4
5	171000000	-5.2	37	256 qam	5
6	179000000	-5	37	256 qam	6
7	187000000	-5.2	37	256 qam	7
8	195000000	-5.7	37	256 qam	8
9	203000000	-6	37	256 qam	9
10	211000000	-5.9	37	256 qam	10
11	219000000	-5.7	37	256 qam	11
12	227000000	-6.2	37	256 qam	12
13	235000000	-6.9	37	256 qam	13
14	243000000	-7.5	37	256 qam	14
15	251000000	-7	37	256 qam	15
16	259000000	-6.2	37	256 qam	16
17	267000000	-5.7	37	256 qam	17
18	275000000	-6	37	256 qam	18
19	283000000	-6.4	37	256 qam	19
20	291000000	-6.9	37	256 qam	20
21	299000000	-6.7	37	256 qam	21
22	307000000	-6	37	256 qam	22
23	315000000	-5.2	37	256 qam	23
24	323000000	-4.7	37	256 qam	24

Downstream bonded channels

Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	37.3	51915	107970
2	Locked	37.6	105846	11534
3	Locked	37.3	66826	61029
4	Locked	37.3	54227	80359
5	Locked	37.6	12685	2495
6	Locked	37.6	1342	759
7	Locked	37.6	4925	2011
8	Locked	37.3	3929	4071
9	Locked	37.6	3892	2830
10	Locked	37.6	1569	808
11	Locked	37.6	2513	797
12	Locked	37.6	4622	2338
13	Locked	37.6	4114	2581
14	Locked	37.3	3060	58
15	Locked	37.3	290	17
16	Locked	37.3	2667	390
17	Locked	37.3	2268	1815
18	Locked	37.6	3891	1080
19	Locked	37.3	582	0
20	Locked	37.3	165	0
21	Locked	37.3	93	0
22	Locked	37.6	58	0
23	Locked	37.6	201	0
24	Locked	37.6	583	2

General Configuration

Network access	Allowed
Maximum Number of CPEs	1
Baseline Privacy	Enabled
DOCSIS Mode	Docsis30
Config file	cmreg-vmdg505-bbt060-b.cm

Primary Downstream Service Flow

SFID	134630
Max Traffic Rate	230000061
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	134629
Max Traffic Rate	22000061
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	42600
Scheduling Type	BestEffort

[sophist]

---

@Fedup01 wrot

What should i do next?

---

The log doesn't look particularly healthy, can you also post teh upstream/downstream data from the same place that you got the log from..

edit. weird, i didn't see the second post with all of hte data..

anyways, downstream power levels are (i think) right on the cusp of being too low. one of your upstream channels is only negotiating a QAM of 32 - should all be at 64. upstream power levels are also borderline unacceptable too..

you also have a bunch of post-rs errors on the downstream channels.

from the log, it looks like your modem is losing connection to the CMTS.

suspect that this will need an engineer visit.  VM should be along within a couple of days to comment.

[Tom_F · Accepted solution]

Hi Fedup01, thanks for posting.

Sorry about the issues you've had with your connection. To confirm what sophist already advised it's clear from here that there are issues that will require the attention of an engineer, please get back to me via PM and we'll be able to get that arranged for you.

Tom 

[Fedup01]

Apologies for the delay in my reply. Things seem to have normalised back to normal. I wanted to wait and see if they would stay that way for a while. Yesterday morning when i sent the second post with my stream data to the forum, it timed out. I then got a message saying i was banned for the day from the board for sending too many messages in rapid series. It turned up about 4 hours later on the forum.  : )

We went to my brothers house to access various things for work. We got back around 16:30 to find everything seemed to be ok again. The logs were clear from around 16:00 p.m.. They stayed clear until around 18:30 when everything suddenly dropped out again, and the Sync and time out errors were there on the log as before (e.g. Upload had dropped from 21 mbs ,to zero or 0.1). We could again not access things, and this was the case until around 19:00 when suddenly it all went back to working. It has been working since 19:30, and seems to be fine at the time of writing this.  Hopefully it will stay that way.

Many thanks to those who took the time to reply. I appreciatre the help and advice.

The 18:30 event on the network log. There has been nothing on it since, and we have not touched or changed anything since yesterday morning.

Network Log

Time	Priority	Description
25/08/2021 18:48:34	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:47:58	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:47:7	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:39:36	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:39:34	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:39:29	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:39:20	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:39:14	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:39:14	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:39:10	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:39:9	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:32:21	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:32:21	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:32:16	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:32:13	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:32:11	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:32:10	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:32:8	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:32:8	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 18:32:8	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[Tom_F]

@Fedup01, really glad to hear things have improved now thanks for updating the thread,  please don't hesitate to get back in touch if any more problems arise.

Tom