Hub 3 Intermittent Dropouts - Flashing Green Power Light

[JackHendon]

Hey, I had a Hub 3 installed by a technician just about a month ago now. Things have been mostly okay and speeds are great when it's working. However, every so often it will just completely die on me. The power light will alternate between flashing green and solid green, and I'll have no option to connect to the wifi on any device in the flat. 

I've posted the network info below, I'd be grateful if anyone was able to suggest a solution to this, or let me know if there's likely a fault and I'll need a technician out? Thanks in advance for any responses.

Downstream

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

1	331000000	3	40	256 qam	25
2	203000000	3.2	40	256 qam	9
3	211000000	3.5	38	256 qam	10
4	219000000	3.7	40	256 qam	11
5	227000000	3.7	40	256 qam	12
6	235000000	3.7	40	256 qam	13
7	243000000	3.4	40	256 qam	14
8	251000000	3	40	256 qam	15
9	259000000	2.7	38	256 qam	16
10	267000000	2.7	40	256 qam	17
11	275000000	2.7	38	256 qam	18
12	283000000	3	40	256 qam	19
13	291000000	3.2	40	256 qam	20
14	299000000	3.2	40	256 qam	21
15	307000000	3.4	40	256 qam	22
16	315000000	3	40	256 qam	23
17	323000000	3	40	256 qam	24
18	339000000	3	40	256 qam	26
19	347000000	3.2	40	256 qam	27
20	355000000	3.5	40	256 qam	28
21	363000000	4	40	256 qam	29
22	371000000	4	40	256 qam	30
23	379000000	4.5	40	256 qam	31
24	387000000	4.1	38	256 qam	32

Upstream

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

1	46200000	49.5	5120	64 qam	3
2	39400000	49.5	5120	64 qam	4
3	53700000	49.5	5120	64 qam	2
4	60300000	49.5	5120	64 qam	1

Configuration

General Configuration

Network access	Allowed
Maximum Number of CPEs	1
Baseline Privacy	Enabled
DOCSIS Mode	Docsis30
Config file	A,.iyewrkldJKDHSUBsgvca69

Primary Downstream Service Flow

SFID	476
Max Traffic Rate	230000061
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	475
Max Traffic Rate	22000061
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	42600
Scheduling Type	BestEffort

Network Log

Time Priority Description

01/01/1970 00:02:0	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:02:0	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:02:1	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:02:1	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:18:11	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:17:51	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:17:51	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:17:2	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:17:2	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:16:9	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:16:9	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:15:22	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:15:22	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:13:58	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:13:58	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:13:3	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:13:3	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:12:9	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:12:8	critical	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/07/2022 13:11:17	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[Adduxi]

You need to post the Pre and PostRS errors as well.   Also setup a BQM here www.thinkbroadband.com/ping

Once done we can comment.

[JackHendon]

Hi Adduxi, apologies - here are the Pre and PostRS errors. I've created a BQM - do you need a link to it?

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

1	Locked	40.3	5	0
2	Locked	38.9	5	0
3	Locked	40.3	5	0
4	Locked	40.3	5	0
5	Locked	40.9	4	0
6	Locked	40.3	0	0
7	Locked	40.3	5	0
8	Locked	40.3	5	0
9	Locked	40.3	5	0
10	Locked	40.3	3	0
11	Locked	38.6	5	0
12	Locked	40.3	5	0
13	Locked	40.3	5	0
14	Locked	40.3	5	0
15	Locked	40.3	5	0
16	Locked	40.3	4	0
17	Locked	40.3	0	0
18	Locked	40.3	3	0
19	Locked	40.3	5	0
20	Locked	40.3	5	0
21	Locked	40.3	6	0
22	Locked	40.3	4	0
23	Locked	40.3	4	0
24	Locked	40.3	4	0

[jbrennand · Accepted solution]

Post the BQM link to..."Share live graph"

Also worth a quick check that all of your coax cable connections are in nice and "finger" tight - at the Hub and wall box and also at any connectors etc. Disconnect all the connections and reconnect to be sure. Ensure there are no “unterminated cable loose ends or loose wires on the connectors . Also check that the internal wiring is ok with no kinking or chaffing, check that all looks good with the outside cabling (no clips piercing, or broken sheathing) and the wall box.

[JackHendon]

Link to BQM - 

https://www.thinkbroadband.com/broadband/monitoring/quality/share/f370a447d95f661dfb4bd59251c1917e87...

All internal cables seem fine as far as I can tell. I don't have immediate access to the outside cabling but will check that as soon as I can. Thanks for your help so far. 

[jbrennand]

Link is working... will need a full 24 hours to get a "complete " picture