Ethernet stopped working and now doesn't even work after reboot

[Martek]

I was just browsing the web at the time. I thought the internet had gone down but eventually realised it was the ethernet connection. It's not a hardware issue as this is a dual boot system and ethernet works fine in Windows.

I am not sure what info woulf be useful to this post. It will be a little tricky adding much as obviously the machine (desktop PC) has no internet connection and I am typing this from my laptop.

[arzgi]

I ment so say that install inxi, then run inxi -Nnz, but it may be confusing, if you have not net connenction.

When you have booted to Debian, check the lights at the net conector, you should see green and yellow flashing leds.

Then open terminal, give command ip a, post the output, use code tags (black square at the top line which is starting with B)

[sunrat]

Happened to me this morning. I just rebooted the router and it was back.

[Martek]

It has started working again but I haven't done anything. In the meantime it was always working in Windows on the same machine so I have no idea what is going on.

[dlu2021]

You could try to see if you can disable "Fast Boot" in the computer UEFI BIOS. If it on it can interfere with Linux working correctly.

[Aki]

Hello,

It has started working again but I haven't done anything. [..] I have no idea what is going on.

Neither does anyone else, without any clues.

What version of Debian do you have installed ? You can check with the following command:

Code: Select all

cat /etc/debian_version

What is your network card ? You can check with the following command:

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lspci -vnn -d ::0200

You can search for messages generated by system services in the system journal, for example using the command (for events since the last boot):

Code: Select all

sudo journalctl -b

In the meanwhile, because your network card is working, you can mark the discussion as "solved" manually adding the text tag "[Solved]" at the beginning of the subject of the first message (after other tags, if any).

Thanks.