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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[–] Pogogunner@sopuli.xyz 12 points 3 days ago (2 children)

The output of dmseg or journalctl might show you an error message related to networkmanager to give you some clues

[–] iamthetot@piefed.ca 2 points 2 days ago

There's a lot in there and I'm not seeing any errors related to NetworkManager.

[–] iamthetot@piefed.ca 4 points 3 days ago

Thank you for the suggestion, I will check these next time.