I can't push a Rigidbody with Character Controller

I tried to push an object with the character controller, but I found out it doesn’t work. After some documentation I found out that Character Controller can’t push objects. I tried this, but I couldn’t make it work. Can you help me with this?

I had problems with Character Controller Collider so I switched to Rigidbody Character Controller.
First of all, your mass should be higher than the object you want to push.
Also, other object shouldn’t be set to isKinematic (or it won’t move).
You should check if the friction is preventing too. High friction means little to no movement.