this post was submitted on 31 Mar 2026
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Weird networking issue, seeking help (piefed.ca)
submitted 3 days ago by iamthetot@piefed.ca to c/linux@programming.dev
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I run CachyOS on my desktop. I host Homepage for myself on a home server. This is reached at home.mydomain.tld. Pihole on my local network catches that request and points it at my local nginx, which reverse proxies me to the homepage.

Now, I set this all up a while back and it all worked totally fine for several weeks. Then, about a week or so ago, for some reason almost every, but not every time I boot my PC, home.mydomain.tld gives me a "cannot be reached" error in my browser... until I run systemctl restart NetworkManager and then it works completely normally.

Can anyone help me troubleshoot why oh why that would suddenly be a thing? Does anyone have suggestions of a way I can troubleshoot a permanent fix to this so that I don't have to restart NetworkManager almost every boot?

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[–] frongt@lemmy.zip 9 points 3 days ago

Ugh, this is the bane of my existence. For decades, this worked reliably. Then they introduced networkmanager and systemd-resolved, and everything went out the window and now it's impossible to trace behavior.

I would verify your network and dns settings. One or both of those things I mentioned are probably interfering in resolution.