How to Make Enemy Follow Local Player only

I have created multiplayer Game. In that game I added Enemy AI. Now enemy follow the player but problem is that Whenever i create or start game and choose LAN host option the code work properly. Enemy follow the player. but when i add another client or another player everything get messed up.camera stop working enemy won't follow the player but as soon as i close all connected client the game again works fine. following is code . please suggest me something.

using UnityEngine; using System.Collections; using UnityEngine.Networking;

public class ArtificialIntelligence : NetworkBehaviour {

 public Transform target;         // Your Player
 public float Maxdistance = 5;          // Distance Enemy stops from player
 public int MoveSpeed = 5;        // How fast The Enemy will move
 public int RotationSpeed = 3;    // How fast The Enemy will rotate

 private Transform mytransform;

 void Awake ()
 {
     mytransform = transform;
 }

 void Update ()
 {
     //if(isLocalPlayer)
     {
         GameObject go = GameObject.FindGameObjectWithTag ("Player");
         target = go.transform;

         Debug.DrawLine (mytransform.position, target.position, Color.yellow);
         if (Vector3.Distance (target.position, mytransform.position) < 20) 
         {
             //Vector3 direction = target.position - mytransform.position;
             mytransform.rotation = Quaternion.Slerp (mytransform.rotation, Quaternion.LookRotation (target.position - mytransform.position), RotationSpeed * Time.deltaTime);

             Debug.Log ("Hii" + Vector3.Distance (target.position, mytransform.position));
             if (Vector3.Distance (target.position, mytransform.position) < Maxdistance) 
                 {
                     Debug.Log ("Hii" + Vector3.Distance (target.position, mytransform.position));
                     mytransform.position += mytransform.forward * MoveSpeed * Time.deltaTime;
                 }  
         }
     }
 }

}

thank you