That option does not appear in WiFi -> menu -> Advanced
WiFi turns itself on whenever I turn it off.
The correct path with the GS5 is settings-WiFi-tap the 3 dots in the upper right then pick advanced-then untick always allow scanning..
I don't see such an app. Why would that help?Is there no Sprint "smart WiFi" app that comes installed on the phone?
I don't see such an app. Why would that help?
I wouldn't help, it causes problems, like turning on WiFi or turning it off, and ignoring the settings you have.
Most carriers, Sprint, Verizon and AT&T include them.
Who is your carrier?
I recently switched from another carrier where I was using a Samsung Galaxy S5 with Lolipop and when I switched I got the same phone and updated it and was having the same issue of WiFi not cutting off. I had turned off the connection optimizer and everything and I could turn off WiFi but in a matter of a few minutes it would be back on and it was frustrating as all get out. I think I have found a fix and I did these simple steps and have been on the mobile network ever since but I can cut WiFi on and off when I want to now.
Start your phone in Safe Mode. To do this restart your phone and when the Samsung logo comes up hold down the volume button. Once it boots (it should say Safe Mode in the bottom left corner) go to Settings>More Networks>Mobile Networks>Connections Optimizer. Once in the connection optimizer if it shows to be off turn it on and then back off or if it is on just turn it off. After doing this restart the phone in normal mode. This worked for me and I hope it will work for ya'll as well.