Thanks for the reply, but I do not have the menu options your showing...( think I USED to have those options, but no longer there)...
I'm using V.4.1.1, and when I go to "wireless and network" settings, I have "Wi-Fi", when I choose that, I have "add wifi network" and at the bottom I have to buttons, "scan" and "Wi-Fi direct", neither of which allow me to choose the band... VERY FRUSTRATING...
There ARE 3 dots and a "more settings" button in the main settings menu, however there is NOT a choice for Auto OR 2.4 GHz Only"... just "airplane mode, mobile networks, tethering, roaming, vpn, NFC, sbeam"...etc....grrrrrrrrrrrrrrrrrr
Again, thanks for your help!!!