Livestream buffering and disconnects while gaming.

[DrKnavery]

Hi there, I've had my 1GB Virgin Broadband for 11 months but for the past 3 weeks or so I've been experiencing a lot of buffering when watching livestreams (Twitch.tv) as well as disconnects from games while playing on PC or Xbox. I've had an engineer visit who came out, replaced a connector outside and left me to see if anything improved. It did not, so he came back with a replacement router. The router was set up with 2 x 4dB attenuators in the back. The problem was even worse than before. I removed those attenuators and it worked pretty much as normal for a few days but now the problem is the same as before. I tried putting both attenuators back, only trying one attenuator at a time. No improvement. What is the next move?

[DrKnavery]

3.0 Downstream channels

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

1	331000000	11.7	42	QAM 256	25
2	139000000	15.1	43	QAM 256	1
3	147000000	14.6	43	QAM 256	2
4	155000000	14.4	43	QAM 256	3
5	163000000	14.2	43	QAM 256	4
6	171000000	13.9	43	QAM 256	5
7	179000000	13.9	43	QAM 256	6
8	187000000	13.7	43	QAM 256	7
9	195000000	13.9	43	QAM 256	8
10	203000000	13.8	43	QAM 256	9
11	211000000	13.6	43	QAM 256	10
12	219000000	13.7	43	QAM 256	11
13	227000000	13.4	43	QAM 256	12
14	235000000	13.2	43	QAM 256	13
15	243000000	13.2	43	QAM 256	14
16	251000000	12.7	43	QAM 256	15
17	259000000	12.7	43	QAM 256	16
18	267000000	12.6	43	QAM 256	17
19	275000000	12.3	43	QAM 256	18
20	283000000	12.5	43	QAM 256	19
21	291000000	12.4	43	QAM 256	20
22	299000000	12.1	43	QAM 256	21
23	307000000	12.2	43	QAM 256	22
24	315000000	11.7	42	QAM 256	23
25	323000000	11.7	42	QAM 256	24
26	339000000	11.4	42	QAM 256	26
27	347000000	11.6	42	QAM 256	27
28	355000000	11.3	42	QAM 256	28
29	363000000	11.3	42	QAM 256	29
30	371000000	11.6	42	QAM 256	30
31	379000000	11.1	42	QAM 256	31

3.0 Downstream channels

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

1	Locked	42	5075	1776
2	Locked	43	410478	39051
3	Locked	43	304771	52621
4	Locked	43	290851	65721
5	Locked	43	190951	54327
6	Locked	43	416211	61931
7	Locked	43	354200	57805
8	Locked	43	333498	38610
9	Locked	43	290080	44637
10	Locked	43	287424	46909
11	Locked	43	285289	34985
12	Locked	43	96794	27282
13	Locked	43	101615	41234
14	Locked	43	72447	31775
15	Locked	43	113315	45289
16	Locked	43	136866	51833
17	Locked	43	98555	56237
18	Locked	43	131056	46885
19	Locked	43	94404	54346
20	Locked	43	114154	43915
21	Locked	43	105317	49849
22	Locked	43	153376	55208
23	Locked	43	82032	38879
24	Locked	42	54756	55375
25	Locked	42	61696	72925
26	Locked	42	119489	113923
27	Locked	42	123635	69328
28	Locked	42	192237	68035
29	Locked	42	150557	53773
30	Locked	42	153505	51769
31	Locked	42	147197	57245

3.1 Downstream channels

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

49

94

4K

1840

QAM 4096

1108

3.1 Downstream channels

Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)

49

Locked

40

5.9

1048720062

104188

[DrKnavery]

3.0 Upstream channels

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

0	49600000	36.5	5120	QAM 64	1
1	43100000	36.3	5120	QAM 64	2
2	36600000	36	5120	QAM 64	3
3	30100000	35.8	5120	QAM 64	7
4	23600000	35.5	5120	QAM 64	8

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

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

3.1 Upstream channels

Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation

11

10.4

31.5

2K

QAM 256

3.1 Upstream channels

Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts

11

OFDMA

208

74000000

1

0

[DrKnavery]

Network Log

Time Priority Description

17-05-2024 12:11:53	notice	GUI Login Status - Login Fail from LAN interface
16-05-2024 18:33:12	notice	GUI Login Status - Login Success from LAN interface
16-05-2024 18:31:47	notice	GUI Login Status - Login Fail from LAN interface
16-05-2024 18:04:51	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:47:33	notice	CM-STATUS message sent. Event Type Code: 24; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:45:36	notice	CM-STATUS message sent. Event Type Code: 24; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:43:45	notice	CM-STATUS message sent. Event Type Code: 22; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:59	notice	CM-STATUS message sent. Event Type Code: 4; Chan ID: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 26 27 28 29 30 31 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1
16-05-2024 17:41:59	notice	CM-STATUS message sent. Event Type Code: 5; Chan ID: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 26 27 28 29 30 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM
16-05-2024 17:41:54	notice	CM-STATUS message sent. Event Type Code: 20; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:46	notice	CM-STATUS message sent. Event Type Code: 16; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:46	notice	CM-STATUS message sent. Event Type Code: 4; Chan ID: 2 3 5 7 8 10 11 12 13 14 15 17 18 19 20 21 22 23 26 29 30 31 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:42	notice	CM-STATUS message sent. Event Type Code: 23; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:36	warning	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:30	warning	MDD message timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:24	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:09	warning	MDD message timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:07	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:06	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:06	warning	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:41:03	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:40:49	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:40:48	warning	MDD message timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:40:43	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:40:42	warning	MDD message timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:40:39	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:40:33	notice	CM-STATUS message sent. Event Type Code: 16; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:40:30	warning	MDD message timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:38:09	notice	CM-STATUS message sent. Event Type Code: 24; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:36:14	notice	CM-STATUS message sent. Event Type Code: 22; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:34:20	notice	CM-STATUS message sent. Event Type Code: 4; Chan ID: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 26 27 28 29 30 31 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1
16-05-2024 17:34:15	notice	CM-STATUS message sent. Event Type Code: 20; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:34:11	notice	CM-STATUS message sent. Event Type Code: 16; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:34:03	notice	CM-STATUS message sent. Event Type Code: 23; Chan ID: 49; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
16-05-2024 17:34:03	notice	CM-STATUS message sent. Event Type Code: 5; Chan ID: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 26 27 28 29 30 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM

[DrKnavery]

[David_Bn]

Thanks for your posts on our Community Forums @DrKnavery, and a very warm welcome to you!

Sorry to hear of the issues you've been experiencing.

I've been able to look into your local area but there doesn't appear to be an issues flagging.

With this, a flow has been ran on the hub and no issues have been revealed.

Can you please provide an updated BQM link and/or screenshot so we can see how things have been since your most recent post?

Thanks,

David_Bn

[Cardiffman282]

Purely on the data posted in the thread the downstream power levels are all far too high and there are tens of thousands of Post RS errors and uncorrectable errors. A 10 dB attenuator would seem to be in order here. 

[legacy1]

Just another upstream problem that VM would not like to fix because next day it might be fine instead of fixing the issue.  

[DrKnavery]

Hi David,

I reattached the 2 x 4 equalisers on the 18th at 08:40 to see if that had any effect but found the issue has persisted. Although errors are down. They remain attached. Here's the link for the BQM 

[jpeg1]

Those attenuators need to stay in.  Do a reset on the Hub and see if the RS errors return. If so there is very likely a cable problem somewhere between the Hub and the street cabinet.

The BQM shows there is a degree of contention on the network which you might be stuck with.