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From: <bp@www.zefox.net>
Newsgroups: comp.sys.raspberry-pi
Subject: Re: Spontaneous locale change on Bookworm
Date: Mon, 23 Sep 2024 16:38:25 -0000 (UTC)
Organization: A noiseless patient Spider
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Lawrence D'Oliveiro <ldo@nz.invalid> wrote:
> On Sun, 22 Sep 2024 17:27:40 -0000 (UTC), bp wrote:
> 
>> If I'm reading the man page correctly, the "failure" in NetworkManager
>> is very likely that the network isn't coming up.
> 
> Don’t guess. Check.

Just rebooted, with the network device in Network Connections >
preconfigured > Device set to wlan0. Networking came up immediately,
bob@raspberrypi:~$ systemctl status NetworkManager-wait-online.service
● NetworkManager-wait-online.service - Network Manager Wait Online
     Loaded: loaded (/lib/systemd/system/NetworkManager-wait-online.service; enabled; preset: enabled)
     Active: active (exited) since Mon 2024-09-23 09:12:57 PDT; 7min ago
       Docs: man:nm-online(1)
    Process: 858 ExecStart=/usr/bin/nm-online -s -q (code=exited, status=0/SUCCESS)
   Main PID: 858 (code=exited, status=0/SUCCESS)
        CPU: 27ms

Sep 23 09:12:49 raspberrypi systemd[1]: Starting NetworkManager-wait-online.service - Network Manager Wait Online...
Sep 23 09:12:57 raspberrypi systemd[1]: Finished NetworkManager-wait-online.service - Network Manager Wait Online.
bob@raspberrypi:~$ 

It's very hard to understand how explicitly setting wlan0 as the active 
interface could matter when that's the only interface with connectivity.
But, for the moment, the visible problem is gone.

It should be said that I've had intermittent problems with WiFi for some
time now. For a while it seemed to be interference-like, varying seemingly
by time of day. After an update to Bookworm a couple weeks ago reported
signal strength went up, (~80% to ~90%) but that didn't prevent disconnect 
problems. Now the disconnect issue seems to have abated. 

Why is still unclear.

Thanks for writing!

bob prohaska