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-   -   Superhub : What could be causing the constant SH3 reboots? (https://www.cableforum.uk/board/showthread.php?t=33707589)

apb27 11-04-2019 21:32
What could be causing the constant SH3 reboots?
 
It's in modem mode and the log doesn't show anything specific but its behaving exactly like it was during the beta test where it would just reboot in modem mode but be absolutely fine in router mode. However, now even changing to router mode doesn't help. Have done a factory reset, tried different devices, removed my 3rd party router to no avail. An engineer is scheduled early next week but it's still annoying :dunce:

Code:
Channel        Frequency (Hz)        Power (dBmV)        SNR (dB)        Modulation        Channel ID
1        299000000        -1.4        40        256 qam        21
2        139000000        -0.2        40        256 qam        1
3        147000000        -0.2        40        256 qam        2
4        155000000        -0.5        40        256 qam        3
5        163000000        -0.7        40        256 qam        4
6        171000000        -0.7        40        256 qam        5
7        179000000        -0.5        40        256 qam        6
8        187000000        -0.7        40        256 qam        7
9        195000000        -1        40        256 qam        8
10        203000000        -1.2        40        256 qam        9
11        211000000        -1.5        40        256 qam        10
12        219000000        -1.5        40        256 qam        11
13        227000000        -1.5        40        256 qam        12
14        235000000        -1.5        40        256 qam        13
15        243000000        -1.4        40        256 qam        14
16        251000000        -1.4        40        256 qam        15
17        259000000        -1.5        40        256 qam        16
18        267000000        -1.5        40        256 qam        17
19        275000000        -1.7        40        256 qam        18
20        283000000        -1.5        40        256 qam        19
21        291000000        -1.9        40        256 qam        20
22        307000000        -1.4        40        256 qam        22
23        315000000        -1        40        256 qam        23
24        323000000        -1        40        256 qam        24
Code:
Upstream bonded channels
Channel        Frequency (Hz)        Power (dBmV)        Symbol Rate (ksps)        Modulation        Channel ID
1        39399996        5.796        5120        16 qam        10

raging bull 11-04-2019 22:34
Re: What could be causing the constant SH3 reboots?
 
Only one upstream which is way out of spec, outside help needed nothing you can do!

SnoopZ 11-04-2019 22:59
Re: What could be causing the constant SH3 reboots?
 
And the upstream power level is high at 57.9.

apb27 11-04-2019 23:55
Re: What could be causing the constant SH3 reboots?
 
Ah. Thanks I guess I will sit tight for the engineer

General Maximus 12-04-2019 11:32
Re: What could be causing the constant SH3 reboots?
 
yeah, big problems on the upstream and the shub will keep resetting the connection trying to fix it. Tbh it isn't going to be a shub fault, it is going to be an area fault. Don't be surprised if the engineer doesn't some and/or they let you know the appointment is cancelled because once he has been to a couple of houses and realises what the problem is he will escalate it to networks who will get it fixed and cancel all subsequent call outs.

apb27 12-04-2019 12:11
Re: What could be causing the constant SH3 reboots?
 
I've paused all the uploading going on in the house and it seems to be more stable, just hoping it gets through streaming Game of Thrones on Sunday OK!

General Maximus 12-04-2019 12:27
Re: What could be causing the constant SH3 reboots?
 
Quote:
Originally Posted by apb27 (Post 35990990)
just hoping it gets through streaming Game of Thrones on Sunday OK!
I hate to be a spoil sport but i dont think it will. You can only hope that enough people ring in and they realise it us an area fault and they fix it today or this weekend. If you keep an eye on the service status page you'll see when they have picked up on the problem.

Sephiroth 15-04-2019 07:16
Re: What could be causing the constant SH3 reboots?
 
Mon General is absolutely correct. There is an upstream issue, likely to be locality wide causing your modem to reset when the power level reaches its maximum threshold. You could check with your neighbours.

Needs calling in to VM.

apb27 15-04-2019 13:34
Re: What could be causing the constant SH3 reboots?
 
Engineer replaced the modem and its showing 4 upstream channels now. Said upstream power was borderline but left it at that. Uploading a lot to stress test it and everything is smooth so far. Problem solved!

SnoopZ 15-04-2019 13:37
Re: What could be causing the constant SH3 reboots?
 
What are your new levels out of interest?

Sephiroth 15-04-2019 14:03
Re: What could be causing the constant SH3 reboots?
 
4 upstreams max out at 51dbMv. Then the system resets.

apb27 15-04-2019 23:33
Re: What could be causing the constant SH3 reboots?
 
Plot twist. A reset just now has resulted in the new modem also reverting back to 1 upstream channel at 5.8dBmV.

Will this need to be adjusted at the cabinet or will an attenuator be OK? I believe I have a few lying around from years ago but not sure if they're applicable to upload

SnoopZ 16-04-2019 00:02
Re: What could be causing the constant SH3 reboots?
 
Quote:
Originally Posted by apb27 (Post 35991319)
Plot twist. A reset just now has resulted in the new modem also reverting back to 1 upstream channel at 5.8dBmV.

Will this need to be adjusted at the cabinet or will an attenuator be OK? I believe I have a few lying around from years ago but not sure if they're applicable to upload
Cabinet I believe for upstream, you need an engineer as 58 is far too high, the other engineer should have fixed this.

You still haven't told us what levels you had on 4 upstream after the hub swap as that is important.

Your upstream isn't actually 5.8dBmV as on the latest firmware the decimal point is in the wrong place.

Sephiroth 16-04-2019 07:21
Re: What could be causing the constant SH3 reboots?
 
He would have had at least 51 dBmv on the upstreams or any one of them.

It's either a locality fault (check with neighbours) or specific from the drop point to the external wall box.

apb27 16-04-2019 12:25
Re: What could be causing the constant SH3 reboots?
 
Update: got an engineer scheduled for tomorrow so hopefully it can be nipped in the bud for good

This is what it looks like this morning :shocked:
Neighbours down the road aren't having issues. Gonna get back on the phone with customer service and request another engineer visit

https://www.cableforum.uk/images/local/2019/04/2.png


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