diff --git a/projects/IoT/IoT.Shared/Application/Services/NodeService.cs b/projects/IoT/IoT.Shared/Application/Services/NodeService.cs
index 14ab648a..d79ca4bf 100644
--- a/projects/IoT/IoT.Shared/Application/Services/NodeService.cs
+++ b/projects/IoT/IoT.Shared/Application/Services/NodeService.cs
@@ -553,6 +553,10 @@ namespace Application.Services
                     if (Connection.State == HubConnectionState.Disconnected)
                     {
                         Console.WriteLine("start connect");
+                        if (this._notifyHost != this._cfg["notify:host"])
+                        {
+                            InitConnection();
+                        }
                         Connection.StartAsync().Wait();
                         this.Notify();
                     }