Hub 4 keeps disconnecting rebooting randomly

[Mikeuk]

Hi the hub 4 keeps disconnecting once or twice a week I have looked in the network log and some entries are logged some are not logged at the time the hub went down ?

Get these in the logs lots I will post detailed ones if required thanks.

No Ranging Response received - T3 time-out

MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM

CM-STATUS message sent. Event Type Code: 24; Chan ID: 33

[John_GS]

Hi Mikeuk

Thanks for coming back to us. I've done a system check and no issues are showing, all levels are in spec and no issues with congestion or SNR (signal to noise ratio). I hope therefore all is sorted. If not, please can you do the following; 

Can you post your Hub status and logs? How to do this;

• Please go to http://192.168.0.1 (or http://192.168.100.1 - if in modem mode), 
• Don't log in, click on 'router status' 
• Copy/paste the data from each of the tabs as text into a 'REPLY' as opposed to 'QUICK REPLY'. Please do not include your MAC address.

Also, set up a Broadband Quality Monitor. This will monitor the state of your connection and record any network dropouts etc. Give it a while to gather data and then click 'Share Live graph' and paste the 'Direct Link' into the forum 🙂

Best,

[Mikeuk]

https://www.thinkbroadband.com/broadband/monitoring/quality/share/594ecc1b179c8275fe307a1860f5a0649fc876b1-22-12-2021

Hi went off last night

[Mikeuk]

Cable Modem StatusItem Status CommentsChannel Overview Downstream Upstream

Cable Modem Status	Online	DOCSIS 3.1
Primary downstream channel	Locked	SC-QAM
DOCSIS 3.0 channels	31	4
DOCSIS 3.1 channels	1	0

[Mikeuk]

3.0 Downstream channels

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

12	227000000	5.000000	40.366287	QAM256	12
6	179000000	4.699997	40.366287	QAM256	6
7	187000000	4.699997	40.366287	QAM256	7
8	195000000	4.599998	38.983261	QAM256	8
9	203000000	4.599998	38.983261	QAM256	9
10	211000000	4.599998	38.983261	QAM256	10
11	219000000	4.900002	40.366287	QAM256	11
13	235000000	5.400002	38.983261	QAM256	13
14	243000000	4.099998	38.983261	QAM256	14
15	251000000	4.699997	38.983261	QAM256	15
16	259000000	5.000000	38.983261	QAM256	16
17	267000000	5.300003	38.983261	QAM256	17
18	275000000	6.000000	38.983261	QAM256	18
19	283000000	5.400002	38.605377	QAM256	19
20	291000000	5.000000	38.983261	QAM256	20
21	299000000	4.900002	38.605377	QAM256	21
22	307000000	4.599998	40.366287	QAM256	22
23	315000000	5.199997	38.983261	QAM256	23
24	323000000	5.300003	38.983261	QAM256	24
25	331000000	5.099998	38.983261	QAM256	25
26	339000000	5.400002	40.366287	QAM256	26
27	347000000	4.800003	38.983261	QAM256	27
28	355000000	5.099998	38.605377	QAM256	28
29	363000000	5.199997	38.983261	QAM256	29
30	371000000	4.699997	38.983261	QAM256	30
31	379000000	5.199997	38.983261	QAM256	31
32	387000000	4.599998	38.605377	QAM256	32
34	395000000	4.699997	38.983261	QAM256	34
35	403000000	5.199997	38.983261	QAM256	35
36	411000000	4.500000	38.983261	QAM256	36
37	419000000	5.000000	38.983261	QAM256	37

3.0 Downstream channels

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

12	Locked	40.366287	0	0
6	Locked	40.366287	0	0
7	Locked	40.366287	0	0
8	Locked	38.983261	0	0
9	Locked	38.983261	0	0
10	Locked	38.983261	0	0
11	Locked	40.366287	0	0
13	Locked	38.983261	0	0
14	Locked	38.983261	0	0
15	Locked	38.983261	0	0
16	Locked	38.983261	0	0
17	Locked	38.983261	0	0
18	Locked	38.983261	0	0
19	Locked	38.605377	0	0
20	Locked	38.983261	0	0
21	Locked	38.605377	0	0
22	Locked	40.366287	0	0
23	Locked	38.983261	0	0
24	Locked	38.983261	0	0
25	Locked	38.983261	0	0
26	Locked	40.366287	0	0
27	Locked	38.983261	0	0
28	Locked	38.605377	0	0
29	Locked	38.983261	0	0
30	Locked	38.983261	0	0
31	Locked	38.983261	0	0
32	Locked	38.605377	0	0
34	Locked	38.983261	0	0
35	Locked	38.983261	0	0
36	Locked	38.983261	0	0
37	Locked	38.983261	0	0

3.1 Downstream channels

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

33

96

4K

1880

QAM4096

424

3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)

33

Locked

41

5.5

181366492

0

[Mikeuk]

3.0 Upstream channels

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

1	60300000	45.520599	5120 KSym/sec	64QAM	1
2	46200000	44.020599	5120 KSym/sec	64QAM	3
3	39400000	43.520599	5120 KSym/sec	64QAM	4
4	53700000	45.020599	5120 KSym/sec	64QAM	2

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	US_TYPE_STDMA	0	0	1	0
2	US_TYPE_STDMA	0	0	0	0
3	US_TYPE_STDMA	0	0	0	0
4	US_TYPE_STDMA	0	0	0	0

[Mikeuk]

General Configuration

Network access	true
Maximum Number of CPEs	1
Baseline Privacy	true
DOCSIS Mode	3.1
Config file	cmreg-vmdg640-bbt060-b.cm

Primary Downstream Service Flow

SFID	155956
Max Traffic Rate	230000061
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	155955
Max Traffic Rate	22000061
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	42600
Scheduling Type	bestEffort

[Mikeuk]

Sat Dec 18 07:53:41 2021	3	No Ranging Response received - T3 time-out;CM-;CMTS-4;CM-QOS=1.1;CM-VER=3.1;
Sat Dec 18 10:33:21 2021	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-;CMTS-4;CM-QOS=1.1;CM-VER=3.1;
Sat Dec 18 11:00:50 2021	3	No Ranging Response received - T3 time-out;CM-;CMTS-4;CM-QOS=1.1;CM-VER=3.1;
Tue Dec 21 07:10:21 2021	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-;CMTS-4;CM-QOS=1.1;CM-VER=3.1;

[Kain_W]

Hi Mikeuk

Thanks for getting back to us and welcome back.

I've took a look into the account and there's nothing on there at the moment that would directly contribute to the disconnections you have raised with regards to power levels and router stats.

I can see this it has disconnected twice this week via SamKnows on Tuesday and Wednesday, can I ask whether it's affecting only wireless devices or wired?

Thanks,

[Mikeuk]

Hi thanks  its both 

[Gareth_L]

Hi Mikeuk

Everything is looking perfect here 

The only option we have is to book a tech and look at swapping the hub 

Let me know if you wish to go down that route 

Gareth_L