Sometimes you need to change the log verbosity of wpa_supplicant for debugging purposes. First check which log verbosity you are currently running with.
ps -ef | grep wpa_supplicant | grep -v grep
-d represents verbose
-dd represents extra verbose
To change the log verbosity, edit
/usr/share/dbus-1/system-services/fi.epitest.hostap.WPASupplicant.service and add -d or -dd as appropriate. Example:
[D-BUS Service] Name=fi.epitest.hostap.WPASupplicant Exec=/sbin/wpa_supplicant -u -d -f /var/log/wpa_supplicant.log User=root
Restart NetworkManager and run the check again to see which log verbosity you are running with.