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vecino

Member

Registered: 2022-12-10

Posts: 136

[SOLVED] NetworkManager - failure 100 (Network is down)

Hi, could someone please explain what this means and what causes it? I have other routers where I don't observe this behavior.

Otherwise vlan100 works normally for me. When checking the logs I come across this message:

Jul 23 21:43:55 router NetworkManager[395]: <warn>  [1690141435.7295] platform-linux: do-change-link[6]: failure 100 (Network is down)

journal log: https://0x0.st/Hepc.txt
journal log (ALL:TRACE): https://0x0.st/He9g.log
nmcli: https://0x0.st/He9d.txt

Tested on both 6.1.39-1-lts and 6.4.4-arch1-1 and the behavior is the same.

Thanks!

Last edited by vecino (2024-04-05 20:06:00)

vecino

Member

Registered: 2022-12-10

Posts: 136

Re: [SOLVED] NetworkManager - failure 100 (Network is down)

After many hours of testing, I found that it helps if I delay the start of NetworkManager by about 10 seconds. Then everything goes fine.

I added to /usr/lib/systemd/system/NetworkManager.service:

ExecStartPre = /bin/sleep 10

It seems that by default when NetworkManager starts, that's when the network adapters are not ready - is this possible?

Previously it worked fine now not (Supermicro A2SDi-4C-HLN4F).

log now is without errors: https://0x0.st/H2rP.txt