Rigidbody acts weird when networked

Hello , i'm trying to network my game that uses the sample assets beta's FPS Controller , however , when i collide , the player just keeps sliding opposite of the direction it collided , also , when i desactivate gravity , It Stops That , anyone found a fix for that ? Thanks :)

Edit : Found this as a temporary Solution , it does the trick but it has to move a little bit before stopping , doesn't break the game but is there a better way?

 void Update () {
         if (Input.GetAxis("Vertical") == 0 && Input.GetAxis("Horizontal") == 0 && GetComponent<FirstPersonCharacter>().grounded)
         {
             rigidbody.isKinematic = true;
         }
         else rigidbody.isKinematic = false;
     }