TMobile Home Internet -- Great signal but no internet?

I use t-mobile for my business and it works great and I've had it for a while so we canceled our Comcast service to get it for the home. We haven't had the home service for 2 weeks and it's already giving us problems. I'm so pissed off because that's the same reason we canceled Comcast. Every couple of days the service was out for over half the day but now it's the same with t-mobile.  Seems like we can't win with internet service. 

It’s worse because “the world” is electronic so we need wifi for literally everything.  

I will definitely be headed down the street to the t-mobile store bright and early. This crap is ridiculous.  Everything always works fine when it's time for them to take our money.