Losing connection now hub rebooting

Question

A while ago started having problems with YouTube stopping and starting which gradually got worse.
Looked at hub logs to see lots of RS errors and warnings for RCS Partial Service and Lost MDD Timeout. The hub has now started rebooting itself and showing errors in the log

Cable Modem Status
ItemStatusCommentsAcquired Downstream Channel (Hz)
299000000

Locked
Ranged Upstream Channel (Hz)
43099996

Locked
Provisioning State
Online
&nbsp;
Downstream bonded channels
ChannelFrequency (Hz)Power (dBmV)SNR (dB)ModulationChannel ID12990000003.236256 qam2121390000001.226256 qam031470000000.725256 qam04163000000-0.726256 qam45171000000-0.530256 qam56179000000-1.528256 qam67187000000-0.729256 qam78195000000-0.530256 qam89203000000-0.229256 qam9102110000000.929256 qam10112190000001.429256 qam1112235000000135256 qam13132430000002.235256 qam1414251000000337256 qam15152590000002.437256 qam16162670000001.738256 qam17172750000001.236256 qam1818283000000336256 qam19192910000003.537256 qam20203070000002.533256 qam22213150000002.234256 qam23223230000003.737256 qam24

Downstream bonded channels
ChannelLocked StatusRxMER (dB)Pre RS ErrorsPost RS Errors1Locked36.847102Locked26693500292730943Locked25.1779299667364Locked26.710646502193181365Locked30.56855735776Locked28.7232750888092367Locked29.92448965747568Locked30.6238489919399Locked29.82547191446410Locked29.5264504857411Locked29.42464976822512Locked35.541836013Locked35.213199014Locked37.3646015Locked37.6307016Locked38.9405017Locked36.62656018Locked36.6621019Locked37.3276020Locked33.917325340170105821Locked34.21691747880579122Locked37.61730
Upstream bonded channels
ChannelFrequency (Hz)Power (dBmV)Symbol Rate (ksps)ModulationChannel ID14309999651512064 qam222359998651512064 qam533010001451512064 qam443659997151512064 qam3

Upstream bonded channels
ChannelChannel TypeT1 TimeoutsT2 TimeoutsT3 TimeoutsT4 Timeouts1ATDMA00002ATDMA00003ATDMA00004ATDMA0000
General Configuration
Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
A,.iyewrkldJKDHSUBsgvca69834n

Primary Downstream Service Flow
SFID604Max Traffic Rate575000085Max Traffic Burst42600Min Traffic Rate0

Primary Upstream Service Flow
SFID603Max Traffic Rate55000085Max Traffic Burst42600Min Traffic Rate0Max Concatenated Burst42600Scheduling TypeBestEffort

Network Log
Mod Edit : Personal information has been removed
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
Broadband quality monitor
https://www.thinkbroadband.com/broadband/monitoring/quality/share/570576fba285e8befb3df6b2d62cf8ec4d48b676

Client62 · Answer

There are far too many Pre RS Error and far worse Post RS Errors on the 3.0 Downstream channels.

The 3.0 Upstream power level is on the high end, suggesting the Hub is working hard to satisfy the demand from the Street Cabinet.

Check all the coax cables are secure at the wall & at the Hub and are free from damage or kinks.

Check for known faults in your street – try both methods :

Call the local fault line: 0800 561 0061 – this is an automated number.

https://www.virginmedia.com/help/check/status/identification/identify

Speller · Answer

Can this post be deleted?&nbsp; I didn't think it had posted, hub rebooted as I did it so I tried again and now see I have two posts for the same problem.

Client62 · Answer

A VM Hub reboot does not correct signal level issues and poor SNR figures.Are you quite sure this is fixed ?&nbsp;

Adduxi · Answer

Strange, I can only see the one post, but then again, this new Board software is a bit quirky ...

Speller · Answer

It's not fixed.&nbsp; I made this post and as I clicked publish I saw the log still mad MACs in, then the hub rebooted and when I got back here I couldn't see the post so thought it had not worked and made another separate one.&nbsp; I see now the button says discussion so maybe I should have said delete this discussion.

Forum Discussion

Losing connection now hub rebooting

Downstream bonded channels

Downstream bonded channels

Upstream bonded channels

Upstream bonded channels

General Configuration

Primary Downstream Service Flow

Primary Upstream Service Flow

Network Log

10 Replies

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Cable Modem Status
Item	Status	Comments
Acquired Downstream Channel (Hz)	299000000	Locked
Ranged Upstream Channel (Hz)	43099996	Locked
Provisioning State	Online

Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	299000000	3.2	36	256 qam	21
2	139000000	1.2	26	256 qam	0
3	147000000	0.7	25	256 qam	0
4	163000000	-0.7	26	256 qam	4
5	171000000	-0.5	30	256 qam	5
6	179000000	-1.5	28	256 qam	6
7	187000000	-0.7	29	256 qam	7
8	195000000	-0.5	30	256 qam	8
9	203000000	-0.2	29	256 qam	9
10	211000000	0.9	29	256 qam	10
11	219000000	1.4	29	256 qam	11
12	235000000	1	35	256 qam	13
13	243000000	2.2	35	256 qam	14
14	251000000	3	37	256 qam	15
15	259000000	2.4	37	256 qam	16
16	267000000	1.7	38	256 qam	17
17	275000000	1.2	36	256 qam	18
18	283000000	3	36	256 qam	19
19	291000000	3.5	37	256 qam	20
20	307000000	2.5	33	256 qam	22
21	315000000	2.2	34	256 qam	23
22	323000000	3.7	37	256 qam	24

Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	36.8	471	0
2	Locked	26	693500	29273094
3	Locked	25.1	779	29966736
4	Locked	26.7	10646502	19318136
5	Locked	30.5	6855735	77
6	Locked	28.7	23275088	809236
7	Locked	29.9	24489657	4756
8	Locked	30.6	23848991	939
9	Locked	29.8	25471914	464
10	Locked	29.5	26450485	74
11	Locked	29.4	24649768	225
12	Locked	35.5	41836	0
13	Locked	35.2	13199	0
14	Locked	37.3	646	0
15	Locked	37.6	307	0
16	Locked	38.9	405	0
17	Locked	36.6	2656	0
18	Locked	36.6	621	0
19	Locked	37.3	276	0
20	Locked	33.9	17325340	1701058
21	Locked	34.2	16917478	805791
22	Locked	37.6	173	0

Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
1	43099996	51	5120	64 qam	2
2	23599986	51	5120	64 qam	5
3	30100014	51	5120	64 qam	4
4	36599971	51	5120	64 qam	3

Network access	Allowed
Maximum Number of CPEs	1
Baseline Privacy	Enabled
DOCSIS Mode	Docsis30
Config file	A,.iyewrkldJKDHSUBsgvca69834n

SFID	604
Max Traffic Rate	575000085
Max Traffic Burst	42600
Min Traffic Rate	0

SFID	603
Max Traffic Rate	55000085
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	42600
Scheduling Type	BestEffort

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