tmobile home internet and mobile hotspot VIZIO TV

For awhile my Vizio tv wasn't connecting to my hotspot from my phone so I just got the home internet service through T-Mobile thinking it would fix it since I thought the hotspot issue was coming from my phone, but it's still not connecting even to the home internet box. My hot spot will connect to other devices and my vizio tv will connect to other WiFi networks but not T-Mobile. Any one else having this issue??