Can't Join same Room in Photon Unity Network 2

I have created a simple Script to make connection between players using Photon Unity Network 2. When I connect using default settings and join a random room, PUN auto create a new room instead of calling an overriden method OnJoinRandomFailed. 2nd Problem is if 2nd user try to connect using JoinRandomRoom, it should connect with same room, which was created by first user. But PUN creates new room for every new user. Here is my Code for NetworkScript:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 using Photon.Pun;
 using Photon.Realtime;
 using UnityEngine.SceneManagement;
 
 public class PhotonNetworkManager : MonoBehaviourPunCallbacks
 {
     [SerializeField] private Button masterConnectButton;
     [SerializeField] private Button roomConnectButton;
 
     private bool triesToConnectToMaster;
     private bool triesToJoinRoom;
 
     private void Start()
     {
         DontDestroyOnLoad(gameObject);
         triesToConnectToMaster = false;
         triesToJoinRoom = false;
     }
     private void Update()
     {
         if(masterConnectButton != null)
             masterConnectButton.gameObject.SetActive(!PhotonNetwork.IsConnected && !triesToConnectToMaster);
         if(roomConnectButton != null)
             roomConnectButton.gameObject.SetActive(PhotonNetwork.IsConnected && !triesToConnectToMaster && !triesToJoinRoom);
 
     }
 
     public void OnButtonConnectToMaster()
     {
         PhotonNetwork.OfflineMode = false;
         PhotonNetwork.NickName = "Player 1";
         PhotonNetwork.AutomaticallySyncScene = true;
         PhotonNetwork.GameVersion = "v1";
 
 
         triesToConnectToMaster = true;
         PhotonNetwork.ConnectUsingSettings();
     }
     public void OnButtonJoinRoom()
     {
         if (!PhotonNetwork.IsConnected)
             return;
         triesToJoinRoom = true;
         Debug.Log("Joining Room");
         //PhotonNetwork.JoinOrCreateRoom("TestRoom", new RoomOptions { MaxPlayers = 20 }, TypedLobby.Default);
         //PhotonNetwork.JoinRoom("TestingRoom2334234");
         PhotonNetwork.JoinRandomRoom();
     }
 
     public override void OnDisconnected(DisconnectCause cause)
     {
         base.OnDisconnected(cause);
         triesToConnectToMaster = false;
         triesToJoinRoom = false;
         Debug.Log(cause);
     }
     public override void OnConnectedToMaster()
     {
         base.OnConnectedToMaster();
         triesToConnectToMaster = false;
         Debug.Log("Connected to Master");
     }
 
     public override void OnJoinedLobby()
     {
         base.OnJoinedLobby();
         Debug.Log("Lobby Joined");
     }
 
 
     public override void OnJoinedRoom()
     {
         base.OnJoinedRoom();
         triesToJoinRoom = false;
         Debug.Log("Master: " + PhotonNetwork.IsMasterClient + " | Players in Room: " + PhotonNetwork.CurrentRoom.PlayerCount);
         //SceneManager.LoadScene("Game");
     }
     public override void OnCreatedRoom()
     {
         base.OnCreatedRoom();
         Debug.Log("Room Created");
     }
     public override void OnJoinRoomFailed(short returnCode, string message)
     {
         base.OnJoinRoomFailed(returnCode, message);
         Debug.Log("Join room error: " +message);
     }
     public override void OnJoinRandomFailed(short returnCode, string message)
     {
         base.OnJoinRandomFailed(returnCode, message);
         Debug.Log("Random join room Error: " + message);
         PhotonNetwork.CreateRoom(null, new RoomOptions { MaxPlayers = 20 });
     }
     public override void OnCreateRoomFailed(short returnCode, string message)
     {
         base.OnCreateRoomFailed(returnCode, message);
         Debug.Log("Create Room Error: "+ message);
         triesToJoinRoom = false;
     }
 
     public override void OnPlayerEnteredRoom(Player newPlayer)
     {
         base.OnPlayerEnteredRoom(newPlayer);
         Debug.Log("Player entered room");
     }
 
 }