Subj : Re: Weird Wifi problem Pi Zero W
To   : none@invalid.com
From : Computer Nerd Kev
Date : Mon Aug 26 2024 09:08:49

mm0fmf <none@invalid.com> wrote:
> I have a Pi Zero W with a weird Wifi issue.
>
> The Pi runs an SSH gateway and is powered from a USB port on the router.
> It's been running faultlessly for about 2years now with a few tweaks to
> the standard setup to mount regularly written to files on a ramdisk to
> preserve the SDcard. The system reboots every 24hrs as a simple way of
> stopping the ramdisk  filling up.
>
> After a new router was installed, this Pi has issues connecting to Wifi.
>
> Power it up and there's a 75% chance it will connect. If it doesn't
> removing and reapplying power makes it likely to connect. If you reboot
> it from the command line it fails to connect most times.

Perhaps not enough enthropy in /dev/random for wpa_supplicant to
work? I had that problem initialising the Pi Zero W's WiFi from
scratch via custom scripts on Linux, fixed by using Haveged to fill
the enthropy pool quicker. NetworkManager in Debian is the other
end of the spectrum so far as ways of setting WiFi up go though. It
probably already has that sorted out.

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