WiFi not turning off

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Something new - under Wifi Settings/Advanced - I have Wi-Fi set to sleep when display is off..

This doesn't seem to be the case. My WiFi is Always on.

I would imagine that the icon would disappear like it does when WiFi is turned off.. but when the phone is asleep and then wakes up, the WiFi connection is still there.

Anything I can try to fix this? I have tried changing the WiFi sleep policy to the other 2, then changing it back to display power - didn't work.

I did have to reboot the phone last night because I couldn't get WiFi to turn off, but I don't have a problem today with turning it on or off.. just won't go to "sleep"

It may be turning off and you just don't notice it. Cause I know that as soon as I turn on the display again its maybe half a second and then the wifi is back on. So you may be missing the switch.
I also notice that I have to leave the display off for a good two or three mins for it to turn off.

Sent from my SAMSUNG-SGH-I897 using XDA App

Is there a way to find out how long you are connected to an Access Point?

I am noticing a big difference in battery drain when WiFi is turned completely off, then when it is in the "Sleep" mode.