Nordic Border Router suddenly stopped working

Hello,

I am currently using Nordic border router image as suggested by Google open thread group as i am using NRF5 SDK examples (sleepy mqttsn-publish example to be precise). The issue which i am facing after using the border router for 1 month continuously, suddenly my otbr has stopped acknowledging the packet send by the end device.

I can see that the MQTT-SN gateway is acknowledging in Rpi system logs but that acknowledge is unable to reach my end device. Here is the system log for the same. please help me ....

Image of the issue :

- as you can see there is some conflict between wpan0 and wlan0

Can anyone please help me ?

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0 user106736 over 4 years ago

Hi Brian

Thank you for reporting this. I suspect it is a bug, and will inform our developers.

As a workaround, I suggest that you make the Border Router rerun dhcpcd after you detect the error.

Regards,
Sigurd Hellesvik
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0 user106977 over 4 years ago in reply to user106736

Okay is that a dhcpcd error ?

As i have less knowledge of networking , i would like to know will restarting dhcpd service solve that ?
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0 user106736 over 4 years ago in reply to user106977

Hi

The error message in your image is tagged "dhcpcd[1945]", so my guess is that this is a dhcpcd error.

I suspect that the Raspberry Pi runs dhcpcd regularly. And by chance, it tried to give the same address to wlan0 and wpan0 when it crashed.

To test if this will happen every time dhcpcd is run, or if it opnly happens if unluckt, try to run "dhcpcd" from your Raspberry Pi command line and check the error logs after. Do this several times.

Regards,
Sigurd Hellesvik
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0 user106736 over 4 years ago in reply to user106977

Hi

The error message in your image is tagged "dhcpcd[1945]", so my guess is that this is a dhcpcd error.

I suspect that the Raspberry Pi runs dhcpcd regularly. And by chance, it tried to give the same address to wlan0 and wpan0 when it crashed.

To test if this will happen every time dhcpcd is run, or if it opnly happens if unluckt, try to run "dhcpcd" from your Raspberry Pi command line and check the error logs after. Do this several times.

Regards,
Sigurd Hellesvik
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0 user106977 over 4 years ago in reply to user106736

user106736 said:
To test if this will happen every time dhcpcd is run, or if it opnly happens if unluckt, try to run "dhcpcd" from your Raspberry Pi command line and check the error logs after. Do this several times.

okay thanks i will let you know after checking.
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