Problem with player updating.

So, Here's the problem--- Upon connecting to the server for the first time, everything works great, although once you disconnect, or another player joins I then run into the issue where

 if(networkView.isMine)

is constantly returning false after the first connection...

Perhaps it's in my code, but here's what I've got.

 using UnityEngine;
 using System.Collections;
 
 public class MovementUpdate : MonoBehaviour {
     
     //Variables Start___________________________________
     
     private Vector3 lastPosition;
     private Quaternion lastRotation;
     private Transform myTransform;
     
     //Variables End_____________________________________
     
     // Use this for initialization
     void Start () 
     {
         if(networkView.isMine == true)
         {
             myTransform = transform;
             
             networkView.RPC("updateMovement", RPCMode.OthersBuffered,
                             myTransform.position, myTransform.rotation);
         }
         
         else
         {
             Debug.Log("Disabling update");
             enabled = false;    
             
         }
     }
     
     // Update is called once per frame
     void Update () 
     {
         
         if(Vector3.Distance(myTransform.position, lastPosition) >= 0.1)
         {
             lastPosition = myTransform.position;
             networkView.RPC("updateMovement", RPCMode.OthersBuffered,
                             myTransform.position, myTransform.rotation);
         }
         
         
         if(Quaternion.Angle(myTransform.rotation, lastRotation) >= 1)
         {    
             
             lastRotation = myTransform.rotation;
             networkView.RPC("updateMovement", RPCMode.OthersBuffered,
                             myTransform.position, myTransform.rotation);
         }
     }
     
     
     [RPC]
     void updateMovement (Vector3 newPosition, Quaternion newRotation)
     {
         transform.position = newPosition;
         transform.rotation = newRotation;
     }
 }

Any help would be greatly appreciated as I've spent over 7 hours trying to figure this out today and finally broke down to ask some questions......