isNetworkActive always false !

Hi all !

I am having a massive headache and I really hope someone can help me out with this.
I am trying to Auto-connect players to the game.
So I am trying to check from the client side if the server is active, and decide if I connect as host or client.
After trying all the solutions out there (ping, register handler...) It seems that NetworkManager.isNetworkActive is exactly what i'm looking for.
UNFORTUNATELY, when I Debug.Log(NetworkManager.isNetworkActive) it is ALWAYS false although server is running fine and my player always connects as host.

This is my code:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using Mirror;
4. using UnityEngine;
5. using UnityEngine.SceneManagement;
6. using System.Net.Sockets;
7. using System.Threading;
8.  
9.  
10. namespace Turnbased {
11.  
12.     public class AutoHostClient : MonoBehaviour {
13.  
14.         public string ip = "13.36.171.251";
15.  
16.         [SerializeField] NetworkManager networkManager;
17.  
18.         void Start ()
19.         {
20.  
21.             networkManager = GameObject.FindObjectOfType<NetworkManager>();
22.  
23.             if (!Application.isBatchMode) {
24.  
25.                 if (Application.internetReachability == NetworkReachability.NotReachable)  //check if device is connected to the internet
26.                 {
27.                     Debug.Log("Error. Check internet connection!");                  
28.                     GameObject.Find("WIFI").SetActive(true);                               //if not, shows a disconnected wifi sign
29.                     networkManager.StartHost();                                            // if not, start as host
30.                 }
31.                 else
32.                 {
33.                     Debug.Log(NetworkManager.isNetworkActive);            
34.  
35.                     if (!NetworkManager.isNetworkActive)                      //Check is server is running
36.                     {
37.                         Debug.Log("Error. Check connection with server!");
38.                         GameObject.Find("WIFI").SetActive(true);              //if not, shows a "no wifi" sign
39.                         networkManager.StartHost();                           //if not, start as host.
40.                     }
41.                     else
42.                     {
43.                         Debug.Log("Connexion to server successful!");      
44.                         GameObject.Find("WIFI").SetActive(false);             //hide "no wifi" sign
45.                         networkManager.StartClient();                         //connect to server as client.
46.                     }
47.  
48.                 }
49.  
50.  
51.             } else
52.                 Debug.Log($"=== Server Build ===");
53.  
54.         }
55.  
56.     }
57.  
58. }

This is script is attached to a GameObject on my scene without network ID.

I don't know what is wrong with this. I can't believe i'm getting so stuck on such a basic issue.
Your help would be much much much appreciated!
<3