Router just restarts without me doing anything

Hi there,
my router just reboots. How do I set the logging so I can see why the router keeps restarting without any influence.
My router information:
Modell PC Engines APU
Architektur AMD G-T40E Processor
Firmware-Version OpenWrt 21.02-SNAPSHOT r16473-1472a8fa42 / LuCI openwrt-21.02 branch git-21.231.26241-422c175
Kernel-Version 5.4.171
I would appreciate some support
Greetings from Stefan Harbich

PC Engines are supported with stable versions. Why are you running the nightly snapshot instead?

He is running the stable 21.02 snapshot...

Okay, can you tell me how to set the git to the stable version?

git checkout openwrt-21.02

Is this correct?

Isn't it easier to download the image?

Is that a snapshot of 21.02? Couldn't there be any difference from the 21.02? Anyway there is 21.02.1 out to try.

Yes, like said in the version string. And the commit hash shows that it is the current head of the stable 21.02 branch (instead of the old 21.02.1 release from the same branch).

Buildbot builds the "official" 21.02 snapshots, just like releases.

And self-built 21.02 builds get the same branding.

Likely you need serial access, so that you see the system console during the crash.

And sure, like trendy suggests, you could try the three month old 21.02.1 so that you can see if there has been a regression in 21.02 since then.

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How do I get the stable version in git without having to install all the packages that I activated with "make menuconfig" afterwards?

I have had the same problem. For me it turned out to be a failing ram chip on the board. I booted from an OpenSuse dignostics usb stick and ran a memory test.
I'm not saying that it is a memory failure here but worth considering that it could be.


I have now tried to switch to version 21.02.1 in the git directory and update my build via make:

git pull
git branch -a
git tag
git checkout v21.02.1
make -j2 V=sc

I checked the memory. Everything okay. After installing the new build I have no more problems. The following version is now installed:

Powered by LuCI openwrt-21.02 branch (git-22.019.56047-2360ebc) / OpenWrt 21.02.1 r16325-88151b8303
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