You in Elgin/Hoffman estates area, I know that area pretty well it's a dead zone for almost all networks, it's not a back haul issue for you.
In the last 5 years I have had AT&T, tmobile, and now sprint and can never get good coverage out there. Never had Verizon or US cellular but have heard the same from friends that there data hardly works out there. If you live in that area sorry for you Bro, but Service just sucks no matter who you have. You should be able to get good voice service still but not data