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Standard User PiKe
(knowledge is power) Thu 09-Aug-18 13:18:50
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What can cause a router to restart?


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My dad has been having ongoing issues for years with fibre broadband, he has tried several different routers and even connected them to a UPS power supply to eliminate the incoming power, or interference over the internal electrical wiring.

Every router drops connections intermittently, sometimes in a burst of 7 or 8 times, the common factor is that every one of the routers, restarts during these periods, its impossible for all the routers to exhibit the same fault.

Could a router reboot if there is excessive resistance over the twisted pair?
Administrator MrSaffron
(staff) Thu 09-Aug-18 13:25:33
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Re: What can cause a router to restart?


[re: PiKe] [link to this post]
 
Which routers?

To confirm all local lan connectivity to the routers admin interface is lost when it is 'restarting'?

Just trying to make sure that resyncs are not being confused with restarts of the router.

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User PiKe
(knowledge is power) Thu 09-Aug-18 13:27:51
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Re: What can cause a router to restart?


[re: MrSaffron] [link to this post]
 
They are definitely restarting because the syslog starts Jan 1 each time before it gets the time from the NTP.

2x Plusnet Hub One
1x Fritz!Box
1x TG589VAC

And I think there was one other which I can't remember, the problem has been going on since before he got Fibre (ADSL MAX), so you can include a BT HH2 in there as well.

Edited by PiKe (Thu 09-Aug-18 14:38:16)


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Administrator MrSaffron
(staff) Thu 09-Aug-18 18:26:46
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Re: What can cause a router to restart?


[re: PiKe] [link to this post]
 
The TG I used to see them have issues when resyncing sometimes, i.e. losing access to web interface, and similar on the BT Hubs, the Fritzbox I am not so sure.

Try https://amzn.to/2AWsZAC I use one in bridge mode in front of a Vodafone router, the line is unstable with the Vodafone router which also when resyncing seems to sometimes drop Wi-Fi.

As a full router the TP W9970 has pretty useless wireless, but pretty much always use it in bridge mode.

Have the usual checks being done with regards to removing extension wiring and testing at the test socket?

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User Rich44
(eat-sleep-adslguide) Sat 26-Oct-19 03:12:39
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Re: What can cause a router to restart?


[re: MrSaffron] [link to this post]
 
I've had a Fritzbox 7490 go over a year without being rebooted it's been rock solid on ADSL then VDSL. The only time it was flaky was beta testing FritzOS7 and I asked for that trouble.

Think the only time I crashed a FB was when I was experimenting with bit torrent & out ridiculous figures in for connections to see what would break it.
Standard User mrmarktigger
(regular) Sat 26-Oct-19 09:06:30
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Re: What can cause a router to restart?


[re: PiKe] [link to this post]
 
In reply to a post by PiKe:
They are definitely restarting because the syslog starts Jan 1 each time before it gets the time from the NTP.

Do they restart at around the same time? Or is it totally random?
Standard User PiKe
(knowledge is power) Sat 26-Oct-19 09:23:54
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Re: What can cause a router to restart?


[re: mrmarktigger] [link to this post]
 
Totally random, still happening on Vodafone, router reports Power as the last reboot reason.

I'm convinced some kind of spike is going down the telephone line causing the router to reset.
Standard User dect
(committed) Sat 26-Oct-19 12:15:51
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Re: What can cause a router to restart?


[re: PiKe] [link to this post]
 
In reply to a post by PiKe:
Totally random, still happening on Vodafone, router reports Power as the last reboot reason.

I'm convinced some kind of spike is going down the telephone line causing the router to reset.
Have Openreach tested the line?
Standard User PiKe
(knowledge is power) Sat 26-Oct-19 13:40:27
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Re: What can cause a router to restart?


[re: dect] [link to this post]
 
Many, many times, couple of high restistance faults but they were fixed and it made no difference.
Standard User RobertoS
(elder) Sat 26-Oct-19 14:19:57
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Re: What can cause a router to restart?


[re: PiKe] [link to this post]
 
Have you checked the wiring inside the mains power socket?
Do any plugs there get hot?
Is a power extension lead or multi-socket adapter in use?
Are the PSUs that come with alternative routers used, or do you use the same one for all?
Is the router on top of or very close to any other electrical/electronic kit or a central heating radiator or pipe?

My broadband basic info/help site - www.robertos.me.uk. Domains, site and mail hosting - Tsohost.
Connection - Three 4G, tbb tests normally 35-45Mpbs down, 65Mbps off-peak, 9-24 up.
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