Buffalo WHR-HP-G54 disconnects from LAN

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Anderl
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Joined: 01 Apr 2021
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PostPosted: Thu Apr 01, 2021 14:10    Post subject: Buffalo WHR-HP-G54 disconnects from LAN Reply with quote
I have a WLAN-bridge over radio relay with two WHR-HP-G54. The bridge worked for a couple of years without any problems. Since four weeks we have to restart one router because he lost the connection to the LAN. And I don’t know why. Therefore I activated syslog on the router. The log is attached. Also the status page.

Can anybody help ?

Thanks.



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egc
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PostPosted: Thu Apr 01, 2021 14:29    Post subject: Reply with quote
If you did not change anything and this 15 year old? router starts to malfunction I would consider a hardware failure.
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blkt
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Joined: 20 Jan 2019
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PostPosted: Thu Apr 01, 2021 14:41    Post subject: Reply with quote
Maybe reconnect or replace Ethernet cables, sometimes reseating is needed, but this is likely failing hardware.
Anderl
DD-WRT Novice


Joined: 01 Apr 2021
Posts: 4

PostPosted: Thu Apr 01, 2021 15:10    Post subject: Reply with quote
one thing changed. we set up a NAC with macmon but the interface on the switch is protected. Is it possible that the failure comes around with the macmon or vlan settings ?
feliciano
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Joined: 24 Oct 2008
Posts: 1007
Location: Latin America

PostPosted: Fri Apr 09, 2021 0:21    Post subject: Re: Buffalo WHR-HP-G54 disconnects from LAN Reply with quote
Anderl wrote:
Can anybody help ?

It's my understanding you have the same equipment on each side, so you could exchange it to check whether the failure is with the router or other gear. In that line of thinking, you could exchange just the power bricks, (because sometimes the capacitors degradate over time).

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kernel-panic69
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Joined: 08 May 2018
Posts: 9486
Location: Texas, USA

PostPosted: Fri Apr 09, 2021 5:25    Post subject: Reply with quote
Either the power adapter caps or the capacitors on the SoC printed circuit board. This is a WRT-54* clone, so that is likely a possibility.
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Anderl
DD-WRT Novice


Joined: 01 Apr 2021
Posts: 4

PostPosted: Thu Apr 15, 2021 10:17    Post subject: Reply with quote
in the meantime I bought exactly the same modell on eBay, installed exactly the same firmware dd-wrt.v23_sp2_standard, configured it just as access point without bridge the other side and connected it parallel on the same switch which is not controlled from macmon. The same phenomenon. The router also starts automatically few times a day. While deactiving the switch port for a while the router works without restart. It's strange. There must be something in LAN which triggers both routers to restart. Is it possible to find out what ? I activated syslog. But I can't see anything which indicates the reason for a restart.
kernel-panic69
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Joined: 08 May 2018
Posts: 9486
Location: Texas, USA

PostPosted: Thu Apr 15, 2021 15:49    Post subject: Reply with quote
Assuming this runs a k24 build from the broadcom folder, I would consider at least upgrading to
the Peacock Thread recommended 14929 (the generic buffalo wiki linked below recommends
nokaid image, but I will link the std image as well):

08-12-10-r14929/broadcom/dd-wrt.v24_std_generic.bin

08-12-10-r14929/broadcom/dd-wrt.v24_nokaid_generic.bin

Second recommendation is 43192:

05-19-2020-r43192/broadcom/dd-wrt.v24_std_generic.bin

05-19-2020-r43192/broadcom/dd-wrt.v24_nokaid_generic.bin

Third recommendation is 45955 or higher:

https://download1.dd-wrt.com/dd-wrtv2/downloads/betas/2021/

https://wiki.dd-wrt.com/wiki/index.php/Buffalo

https://wiki.dd-wrt.com/wiki/index.php/WHR-HP-G54

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Anderl
DD-WRT Novice


Joined: 01 Apr 2021
Posts: 4

PostPosted: Sat Apr 17, 2021 13:07    Post subject: Reply with quote
14929 installed. No change. Buffalo restarts automatically

Is it possible to log all incoming traffic from LAN to identify the trigger ?

Now I will try 43192.
feliciano
DD-WRT Guru


Joined: 24 Oct 2008
Posts: 1007
Location: Latin America

PostPosted: Wed May 05, 2021 15:37    Post subject: Reply with quote
Anderl wrote:
14929 installed. No change. Buffalo restarts automatically

Is it possible to log all incoming traffic from LAN to identify the trigger ?

You can set the router to log to an external server. Yo need to enable/configure it under services and security, and you can set the level of details you want to log for troubleshooting.

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