Re: galaxy note 4 keeps scanning wifi every 10 sec, WIFI Advanced, all boxes unchecked.
Also, when you are in the screen where it is showing the WiFi hotspots available, I don't care what your settings are, the phone WILL scan for new WiFi hotspots every 10 seconds. The whole point of that screen is to continuously scan and allow you to select a hotspot manually. So even if you have all of the automatic scanning options turned off, when you go into a screen that is specifically designed to scan for hotspots so you can choose one to connect to, it's going to scan for them.
I mention this only because it took me all too long to realize that this is not a defect - I was almost at the point of screaming frustration begging my phone to please stop scanning for WiFi access points - then I realized that it was simply trying to list the ones available for me because I was in what doubled for the "manual connection" screen.