Multiplayer different player prefab

Hi there I have build a multiplayer game where a player can choose his/her character he/she wants to be. If I play the game on my pc (open up two versions of the game) it is working perfectly, but when I run it on different pc's the host selection prefab is the same for everyone else (clients). I don't know what the problem.. is it to do with when the host start the game is says "client address = localhost", but on the client side it says "client address = 192.168.0.3"... Please help

Here is the code of the Network Manager

 using UnityEngine;
 using System.Collections;
 using UnityEngine.Networking;
 using UnityEngine.UI;
 
 public class netmanagercustom : NetworkManager {
 
     public class MsgTypes
     {
         public const short PlayerPrefab = MsgType.Highest + 1;
         
         public class PlayerPrefabMsg : MessageBase
         {
             public short controllerID;    
             public short prefabIndex;
         }
     }
     
     public class NetworkController : NetworkManager
     {
         [SerializeField] Vector3 playerSpawnPos;
         [SerializeField] GameObject character1;
         [SerializeField] GameObject character2;
         [SerializeField] GameObject character3;
         [SerializeField] GameObject character4;
         [SerializeField] GameObject character5;
         [SerializeField] GameObject character6;
         [SerializeField] GameObject character7;
         [SerializeField] GameObject character8;
         [SerializeField] GameObject character9;
         [SerializeField] GameObject character10;
         [SerializeField] GameObject character11;
 
         GameObject chosenCharacter;
 
         public short playerPrefabIndex;
         
         public override void OnStartServer()
         {
             NetworkServer.RegisterHandler(MsgTypes.PlayerPrefab, OnResponsePrefab);
             base.OnStartServer();
         }
         
         public override void OnClientConnect(NetworkConnection conn)
         {
             client.RegisterHandler(MsgTypes.PlayerPrefab, OnRequestPrefab);
             base.OnClientConnect(conn);
         }
         
         private void OnRequestPrefab(NetworkMessage netMsg)
         {
             MsgTypes.PlayerPrefabMsg msg = new MsgTypes.PlayerPrefabMsg();
             msg.controllerID = netMsg.ReadMessage<MsgTypes.PlayerPrefabMsg>().controllerID;
             msg.prefabIndex = playerPrefabIndex;
             client.Send(MsgTypes.PlayerPrefab, msg);
         }
         
         private void OnResponsePrefab(NetworkMessage netMsg)
         {
             MsgTypes.PlayerPrefabMsg msg = netMsg.ReadMessage<MsgTypes.PlayerPrefabMsg>();  
             playerPrefab = spawnPrefabs[msg.prefabIndex];
             base.OnServerAddPlayer(netMsg.conn, msg.controllerID);
             Debug.Log(playerPrefab.name + " spawned!");
         }
         
         public override void OnServerAddPlayer(NetworkConnection conn, short playerControllerId)
         {
             MsgTypes.PlayerPrefabMsg msg = new MsgTypes.PlayerPrefabMsg();
             msg.controllerID = playerControllerId;
             NetworkServer.SendToClient(conn.connectionId, MsgTypes.PlayerPrefab, msg);
 
             //var player = (GameObject)GameObject.Instantiate(chosenCharacter, playerSpawnPos, Quaternion.identity);
             //NetworkServer.AddPlayerForConnection(conn, player, playerControllerId);
         }
     }
 
         [SerializeField] Vector3 playerSpawnPos;
         [SerializeField] GameObject character1;
         [SerializeField] GameObject character2;
         [SerializeField] GameObject character3;
         [SerializeField] GameObject character4;
         [SerializeField] GameObject character5;
         [SerializeField] GameObject character6;
         [SerializeField] GameObject character7;
         [SerializeField] GameObject character8;
         [SerializeField] GameObject character9;
         [SerializeField] GameObject character10;
         [SerializeField] GameObject character11;
         
         GameObject chosenCharacter;
         
         void Update()
         {
             if (PlayerPrefs.GetInt ("PlayerNumber") == 0) {
                 chosenCharacter = character1;
             }
             
             if (PlayerPrefs.GetInt ("PlayerNumber") == 1) {
                 chosenCharacter = character2;
             }
             
             if (PlayerPrefs.GetInt ("PlayerNumber") == 2) {
                 chosenCharacter = character3;
             }
 
             if (PlayerPrefs.GetInt ("PlayerNumber") == 3) {
                 chosenCharacter = character4;
             }
 
             if (PlayerPrefs.GetInt ("PlayerNumber") == 4) {
                 chosenCharacter = character5;
             }
 
             if (PlayerPrefs.GetInt ("PlayerNumber") == 5) {
                 chosenCharacter = character6;
             }
 
             if (PlayerPrefs.GetInt ("PlayerNumber") == 6) {
                 chosenCharacter = character7;
             }
 
             if (PlayerPrefs.GetInt ("PlayerNumber") == 7) {
                 chosenCharacter = character8;
             }
 
             if (PlayerPrefs.GetInt ("PlayerNumber") == 8) {
                 chosenCharacter = character9;
             }
 
             if (PlayerPrefs.GetInt ("PlayerNumber") == 9) {
                 chosenCharacter = character10;
             }
 
             if (PlayerPrefs.GetInt ("PlayerNumber") == 10) {
                 chosenCharacter = character11;
             }
         }
         public override void OnServerAddPlayer(NetworkConnection conn, short playerControllerId){
             var player = (GameObject)GameObject.Instantiate (chosenCharacter, playerSpawnPos, Quaternion.identity);
             NetworkServer.AddPlayerForConnection(conn, player, playerControllerId);
         }
     }