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Wpa supplicant

wpa_supplicant

The user is not allowed to control the interface

  • Edit /etc/wpa_supplicant/wpa_supplicant.conf and add this line if it's not there:
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
  • Run cat /etc/group | grep netdev

If your username is not listed under that line, you need to add it with the following command:

usermod -a -G netdev pi
(if your username is not 'pi' change 'pi' to your username)

Then reboot the machine:

systemctl reboot

Tip

It's possible to just restart KlipperScreen and networking