This is an Acer Aspire one laptop, with a 32 bit CPU and Debian 12.7. Whenever I install Linux on it, the Internet works for about one day. And when I boot it up the next day, it just stops working. This is the case for WiFi, Ethernet and USB tethering via Android.
After running networkctl it gave me this:
I can ping 8.8.8.8 in this state, but not gnu.org. I can’t open websites in Firefox either.
Then I ran “sudo systemctl start systemd-networkd”. The networkctl output changed but everything worked exactly as the above two images. Couldn’t open websites still.
Yesterday everything was working perfectly
Edit: Thanks to @nanook@friendica.eskimo.com and @MyNameIsRichard@lemmy.ml I finally have internet access on my 12-year old e-waste!
Why are you using networkd instead of networkmanager on a desktop? The two don’t work together.
Anyway, it looks like a DNS problem. You can manually specify DNS servers (like 8.8.8.8, 8.8.4.4) in whatever network management you’re using.
Alternatively you can edit
/etc/hosts/etc/resolv.confobviously) and then make it immutable (chattr +i /etc/hosts) to prevent changes.