Turn off Wifi?

Thank you, I actually have a dongle somewhere, I will see if I can find it and go that route.  routing with subnet doesn't sound like it is simple enough for me.  If you know.  I opened the hint app on my iPhone and was hoping to turn it off there, but there was a giant warning about not being able to turn it back on unless I had a wired connection.  I have the t-mobile going into a flint 2 router via ethernet.  would that count as a wired connection and I could access via hint if my iPhone was on the flint ssid?  My entire goal here is to turn off the cox modem radio and the t-mobile radio to reduce interference with my flint 2 router when I then have wired to my orbi so that I didn't have to change the network for every wireless device in the house.  I may also decide to turn off the radio for the flint 2 which I only introduced in order to have two internet data source into one ssid as backup in case I am not at home and want my security to continue to be active.