Do I have a problem with readings.

[SNK]

I have had the new hub 5 a few days now and at the start all was working ok, but now I am getting upload speed drops sometimes as low as 3Mbps and the download can drop to 170Mbps which is not too bad but was allway above 200Mbps. Run the virgin test and it came back as possile noise in the cable. Have checked all connections. Hub in modem mode but is the same in router mode.

Downstream bonded channels

Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	307000000	2.2	39	QAM 256	22
2	139000000	1.9	38	QAM 256	1
3	147000000	1.9	39	QAM 256	2
4	155000000	1.9	39	QAM 256	3
5	163000000	1.7	39	QAM 256	4
6	171000000	1.9	39	QAM 256	5
7	179000000	2.1	39	QAM 256	6
8	187000000	2.1	39	QAM 256	7
9	195000000	2.2	39	QAM 256	8
10	203000000	2.2	39	QAM 256	9
11	211000000	2.5	39	QAM 256	10
12	219000000	2.7	39	QAM 256	11
13	227000000	2.7	39	QAM 256	12
14	235000000	2.7	39	QAM 256	13
15	243000000	2.6	39	QAM 256	14
16	251000000	2.6	39	QAM 256	15
17	259000000	2.6	39	QAM 256	16
18	267000000	2.5	39	QAM 256	17
19	275000000	2.6	39	QAM 256	18
20	283000000	2.7	39	QAM 256	19
21	291000000	2.7	39	QAM 256	20
22	299000000	2.5	39	QAM 256	21
23	315000000	1.6	39	QAM 256	23
24	323000000	1.3	39	QAM 256	24
25	331000000	1.5	39	QAM 256	25
26	339000000	1.8	39	QAM 256	26
27	347000000	1.8	39	QAM 256	27
28	355000000	2	39	QAM 256	28
29	363000000	2.1	39	QAM 256	29
30	371000000	2.2	39	QAM 256	30
31	379000000	2.3	39	QAM 256	31

Any help would be gratefully received as I have never had any problems before.

Will post BQM's when I can figure out how to do so.

[SNK]

Downstream bonded channels

Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	39	69	67
2	Locked	38	91	68
3	Locked	39	62	66
4	Locked	39	122	88
5	Locked	39	145	111
6	Locked	39	100	84
7	Locked	39	120	108
8	Locked	39	74	87
9	Locked	39	61	84
10	Locked	39	49	66
11	Locked	39	58	59
12	Locked	39	47	50
13	Locked	39	55	34
14	Locked	39	58	47
15	Locked	39	42	36
16	Locked	39	32	46
17	Locked	39	50	29
18	Locked	39	73	48
19	Locked	39	53	45
20	Locked	39	26	45
21	Locked	39	41	42
22	Locked	39	46	61
23	Locked	39	46	18
24	Locked	39	51	38
25	Locked	39	59	52
26	Locked	39	59	48
27	Locked	39	17	31
28	Locked	39	20	38
29	Locked	39	52	39
30	Locked	39	6	45
31	Locked	39	0	17

Upstream bonded channels

Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	46200000	48.5	5120	QAM 32	1
2	39400000	48	5120	QAM 32	2
3	32600000	48	5120	QAM 32	3
4	25800000	47	5120	QAM 32	4

Upstream bonded 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

[SNK]

Network Log

Time	Priority	Description
20-12-2021 13:55:44	warning	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;
20-12-2021 13:55:44	notice	DS profile assignment change. DS Chan ID: 32; Previous Profile: 2; New Profile: 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 13:06:05	warning	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=:cd;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 13:06:04	notice	DS profile assignment change. DS Chan ID: 32; Previous Profile: 1 2; New Profile: 2.;CM-MAC=;CMTS-MAC=:;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 13:06:04	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:54:52	notice	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:54:52	warning	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;
20-12-2021 12:54:15	notice	CM-STATUS message sent. Event Type Code: 5; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=:dd:cd;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:54:01	notice	REGISTRATION COMPLETE - Waiting for Operational status
20-12-2021 12:53:55	warning	REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:52:46	notice	TLV-11 - unrecognized OID;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:52:44	warning	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:52:42	notice	Honoring MDD; IP provisioning mode = IPv4
20-12-2021 12:52:32	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:52:32	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:52:22	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:52:21	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:39:13	critical	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:29:11	critical	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:28:41	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:28:21	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:28:15	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:28:12	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:28:10	critical	SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
20-12-2021 12:27:08	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
17-12-2021 12:35:19	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=3.1;
15-12-2021 09:04:55	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
04-12-2021 11:49:08	critical	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;

[SNK]

BQM

21st Dec

[url=https://www.thinkbroadband.com/broadband/monitoring/quality/share/3f80f927b3b997b01fbc44c986f07f0a64c84be3]My Broadband Ping[/url]

[carl_pearce]

Upstream power levels quite high and QAM on all four channels 32, when they should be 64:

Upstream bonded channels

Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	46200000	48.5	5120	QAM 32	1
2	39400000	48	5120	QAM 32	2
3	32600000	48	5120	QAM 32	3
4	25800000	47	5120	QAM 32	4

Looks like a local area issue.

[Tudor]

Also too many Post RS errors which are uncorrectable. 

Check with Area faults on  www.virginmedia.com/servicechecker or 0800 561 0061 If you have a VM landline 150 The phone goes down to post code level.

If no faults found:

Call Customer Services on 0345 454 1111/150 if you have a VM landline or wait a day or two for a VM staff member to get to your post.

[SNK]

Latest graph from Thinkbroadband

[Zak_M]

Good morning @SNK. 

Welcome back to the forums and thank you for taking the time to post. 

I am sorry to hear that you are having some issues with your services. 

I have managed to locate your account using your forums information, I can see that you already have an engineer booked for this, Is that correct? 

Kind regards,

Zak_M

[SNK]

Hi Zak_M
Thanks for picking this up. Yes I have an engineer book for Thursday 30th hopefully he will be able to correct the problem as now the upload modulation can sometimes drop down to QAM16. Have tried all the usual fixes even a pinhole reset with no success.

[Molly_T]

Hi @SNK - thank you for getting back to us. 

I do hope that the engineer resolves the issue for you tomorrow (30th). Do let us know how you get on! 

All the best, Molly.