Re: More WiFi mischief in Bookworm

The Natural Philosopher <tnp@invalid.invalid> wrote:

On 16/06/2025 23:26, bp@www.zefox.net wrote:

 
One report on the web suggested that certain characters in passwords
were not handled correctly in bookworm. The only "special" character
I use is a period (.), which according to all reports I can find is
legal for ssid passwords.
 

I have a period in my SSID pasword and all my Pis work fine
 

 

I had a Pi zero problem that sounds suspiciously like this. A better PSU
made it disappear.
 
I have a sneaking suspicion that a lot of Pis loaded up with whatever
are now actually on the limit with respect to PSU current. Wifi takes a
lot of power when actually transmitting data.
 
Friend had a Pi5 that wouldn't connect to his disk, via USB but would
connect to mine.
 
Powered hub sorted it...

In the course of exploring the wifi problems I moved the Pi5 to a new
location where it could use a wired ethernet connection. On reboot I
saw a message saying that "USB booting requires a 5V 5A power supply"
or words to that effect. I think the message is new, it's unclear if
it's a warning or merely informational. At the same time I added a
2nd monitor, which led to some confusion (mine) during startup so it
took a couple of tries, ending with both monitors working correctly.
Whether the failures were boot problems or just me looking at the wrong
screen is not apparent.

Right now there's a voltmeter connected to the ground and +5V pins on
the GPIO header, Wifi is on, the meter reads 5.08V. Turning wifi off
seems to make no difference. Turning wifi back on caused a momentary
dip to 5.06V which recovered within one second.

If that's a PSU problem it's mighty subtle.

Thanks for writing!

bob prohaska