Re: Weird Wifi problem Pi Zero W

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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