I have an iPhone 6S Plus running iOS 9.3.1 and I have noticed within the last month that about once or twice in a 24 period my wifi and Bluetooth stop working. Even more odd it's only my 2.4 Ghz wifi band. They both state they are turned on in settings, but if I try to connect to any Bluetooth device it won't work and if I try to connect to a wifi network only 5 Ghz bands show up. If I do a hard reset on my phone it works again for a while then the problems occurs again. I have restored my phone but to no avail. Any information about anyone else experiencing similar issues and anything you have done to solve it would be greatly appreciated. Thanks in advance!