diff --git a/Class/AsyncHttpServer.cs b/Class/AsyncHttpServer.cs
index a7b08ed..5164175 100644
--- a/Class/AsyncHttpServer.cs
+++ b/Class/AsyncHttpServer.cs
@@ -142,15 +142,7 @@ namespace ForwardingServerUI.Class
                  await e.InvokeNext();*/
             }
         }
-
-
-
-
-
-
-       
-
-
+             
 
 
     }
diff --git a/Class/AsyncTcpServer.cs b/Class/AsyncTcpServer.cs
index 087d865..b184ad8 100644
--- a/Class/AsyncTcpServer.cs
+++ b/Class/AsyncTcpServer.cs
@@ -33,24 +33,23 @@ namespace ForwardingServerUI.Class
             service.Connecting = (client, e) => { return EasyTask.CompletedTask; };//有客户端正在连接
             service.Connected = (client, e) => { return EasyTask.CompletedTask;};//有客户端成功连接
             service.Closing = (client, e) => { return EasyTask.CompletedTask; };//有客户端正在断开连接，只有当主动断开时才有效。
-            service.Closed =  (client, e) => {
+            service.Closed =  (client, e) =>
+            {
                 //离线记录
-
                 Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "] NOT ID " +
                     client.Id + " IP " + client.IP);
 
-                DataRow[] dat = MainWindowViewModel._machineTable.Select("ID='"+client.Id+"'");
-                foreach (DataRow row in dat)
-                {
-                    Application.Current.Dispatcher.Invoke(() => {
-                        MainWindowViewModel._machineTable.Rows.Remove(row);
-                    });
+                DataRow row = MainWindowViewModel._machineTable.Select("ID='" + client.Id + "'").First();
 
-                    Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "] NOT LINK ID = " +
-                          row["ID"] + " IP = " + row["IP"] + " Enterprise = " + row["Enterprise"] +
-                          " MachineName = " + row["MachineName"]);
-                }               
-                return EasyTask.CompletedTask; 
+                Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "] BREAK LINK ID = " +
+                      row["ID"] + " IP = " + row["IP"] + " Enterprise = " + row["Enterprise"] +
+                      " MachineName = " + row["MachineName"]);
+
+                Application.Current.Dispatcher.Invoke(() =>
+                {
+                    MainWindowViewModel._machineTable.Rows.Remove(row);
+                });
+                return EasyTask.CompletedTask;
             };//有客户端断开连接
             service.Received = (client, e) =>{                
                 string DAT = e.Memory.Span.ToString(Encoding.UTF8);
@@ -156,7 +155,7 @@ namespace ForwardingServerUI.Class
             Console.WriteLine("TcpServer:Run");
 
             //启动检查循环定时器
-            _timer = new Timer(TimerCallback, null, TimeSpan.FromSeconds(90), TimeSpan.FromSeconds(30));
+            _timer = new Timer(TimerCallback, null, TimeSpan.FromSeconds(5), TimeSpan.FromSeconds(30));
         }
 
         private static async void TimerCallback(object? state)
@@ -168,12 +167,24 @@ namespace ForwardingServerUI.Class
                 {
                     DataRow dataRow = MainWindowViewModel._machineTable.Rows[i-1];
                     DateTime dateTime = DateTime.Parse(dataRow["HeartbeatTime"].ToString()!);
+
+                    if (DateTime.Now > dateTime.AddSeconds(30) && (int)dataRow["Start"] == 30)
+                    {
+                        Application.Current.Dispatcher.Invoke(() =>
+                        {
+                            dataRow.BeginEdit();
+                            dataRow["Start"] = 999;
+                            dataRow.EndEdit();
+                            dataRow.AcceptChanges();
+                        });
+
+                        Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "] NOT LINK ID = " +
+                            dataRow["ID"] + " IP = " + dataRow["IP"] + " Enterprise = " + dataRow["Enterprise"] +
+                            " MachineName = " + dataRow["MachineName"]);
+                    }
+
                     if (DateTime.Now > dateTime.AddSeconds(180))
                     {
-                        Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + "] NOT LINK ID = " +
-                            dataRow["ID"] + " IP = " + dataRow["IP"] + " Enterprise = " + dataRow["Enterprise"] + 
-                            " MachineName = " + dataRow["MachineName"] );
-
                         //关闭无回应连接
                         foreach (var item in service.Clients)
                         {
@@ -186,6 +197,7 @@ namespace ForwardingServerUI.Class
                             }
                         }
                     }
+                 
                 }
             }
             catch (Exception ex)