Drive [Q] Wifi tether router problem! !! (T-Mobile)

Hello. Everyone
I'm new to the xda developers and we I was just having having a little problem with my Galaxy s5 rooted on T-Mobile.
It's with the wifi tether router app
I bought it. It works really good on Apple and Android smartphones or tablets without using my tether data.
But every time I connect it to my ps4 or try a computer it uses the tether data Idont know why.
I was wondering if any of you knew anything about it or has having problems like these as well??
When I use Netflix on my ps4 it does. It use tether data it uses it pretty much on every other app or game I play on it? Has this happened to any of you or you are tethering with no problem?? Please write back!!!
Thank you So much!!!