diff --git a/projects/Infrastructure/Extensions/ExceptionExtensions.cs b/projects/Infrastructure/Extensions/ExceptionExtensions.cs
index 3726cd6b..af4614f2 100644
--- a/projects/Infrastructure/Extensions/ExceptionExtensions.cs
+++ b/projects/Infrastructure/Extensions/ExceptionExtensions.cs
@@ -1,16 +1,18 @@
 using System;
+using System.Runtime.CompilerServices;
 
 namespace Infrastructure.Extensions
 {
     public static class ExceptionExtensions
     {
-        public static void PrintStack(this Exception ex, string message = null)
+        public static void PrintStack(this Exception ex, string message = null, [CallerMemberName] string memberName = "")
         {
             Console.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fff"));
             if (message != null)
             {
                 Console.WriteLine(message);
             }
+            Console.WriteLine(memberName);
             Console.WriteLine(ex.Message);
             Console.WriteLine(ex.StackTrace);
             ex.InnerException?.PrintStack();
diff --git a/projects/IoT/IoT.Shared/DeviceServices/FBee/FBeeService.cs b/projects/IoT/IoT.Shared/DeviceServices/FBee/FBeeService.cs
index e1b1754f..324d4057 100644
--- a/projects/IoT/IoT.Shared/DeviceServices/FBee/FBeeService.cs
+++ b/projects/IoT/IoT.Shared/DeviceServices/FBee/FBeeService.cs
@@ -66,17 +66,21 @@ namespace IoT.Shared.DeviceServices.FBee
             {
                 while (!_tokenSource.IsCancellationRequested)
                 {
-                    try
+                    foreach (var item in this.Clients)
                     {
-                        foreach (var item in this.Clients)
+                        try
                         {
                             Console.WriteLine($"check gateway:{item.Key}");
                             this.X9d(item.Key);
                         }
-                    }
-                    catch (Exception ex)
-                    {
-                        ex.PrintStack();
+                        catch (Exception ex)
+                        {
+                            ex.PrintStack();
+                            if (!item.Value.Client.Connected)
+                            {
+                                this.Connect(item.Value);
+                            }
+                        }
                     }
                     await Task.Delay(1000 * 60);
                 }