I set "wifi on during sleep" to "never" or "Only when plugged in" , when I do wake up the phone and start using it, wifi does not reconnect.
It keeps searching and shows none of my saved networks within range, in fact no networks at all. I've waited up to a 10 minutes with no success.
I have to turn off wifi and on for it to connect.
If i set it to be always on during sleep, it works.
Is this how this setting is supposed to work when set to 'never' or 'only when plugged in'.
In oxygenos it worked.