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From: Thomas Kempkes <news@familie-kempkes.de>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: Bookworm updates killing WiFi
Date: Tue, 24 Jun 2025 09:49:49 +0200
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bp@www.zefox.net wrote:
> I've been complaining here about WiFi problems for some time and it's
> finally dawned on me that rfkill is a frequent visitor to the scene.

> Is it plausible that running the "updates available" routine somehow
> un-sets the WiFi region selection? The selections look unchanged, but
> re-running the configuration seems to fix WiFi operation. 

> Thanks for reading!

> bob prohaska

One german it site stated they had problems with the wifi stability
after the update to bookworm.
It was the avahi-daemon for them, which showed with log entried like

Sep 26 10:37:41 frigate avahi-daemon[651]: Withdrawing address record for 2003:aa:bb:ccc:feed:dead:beef:be61 on wlan0.

Their fix was to just disable avahi-daemon and the problem was gone for
good:

sudo systemctl disable avahi-daemon.socket
sudo systemctl disable avahi-daemon

BYe Thomas

PS: Original link:
https://www.heise.de/ratgeber/Raspi-mit-Debian-verliert-Internet-Verbindung-9998575.html


-- 
         The computer revolution is over. The computers won.