Collision is not working for my 3rd person controller using mecanim,locomotion setup, and mixamo character. Control and animation are excellent but no collision or triggers working. Unity 4

I have a mixamo character that i have used to replace the generic character that come with the locomotion controller setup I got on the Asset store. The animation and controller work great but now I have no collision with the terrain, I do not fall through the ground but walk thru all hills and walls. Also none of my triggers for the player tag are tripping either. I have Unity 4. I have tried adding a character controller or a capsule controller but nada!