Are you rooted by chance? One rooted I can walk you through a method to get your installed Wi-Fi tethering app to work like fox fi
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I've never been able to get it to work on my S4 on tmobile. Used to use it on my Nexus 4 all the time. My suggestion is to root your device and find a tethering app that will work. Good luck!
I'm not rooted at the moment. I was hoping to stay away from it as long as I can.
If there is no work around then I will have to root.
Thanks for the offer.
