diff --git a/Class/AsyncTcpServer.cs b/Class/AsyncTcpServer.cs
index 5060a58..6f31975 100644
--- a/Class/AsyncTcpServer.cs
+++ b/Class/AsyncTcpServer.cs
@@ -124,32 +124,37 @@ namespace ForwardingServerUI.Class
                         }
                         else
                         {
-                            Personm deserializedPerson = JsonSerializer.Deserialize<Personm>(DAT)!;
-                            Application.Current.Dispatcher.Invoke(() =>
+                            string trimmedDat = DAT.Trim();
+                            if (!string.IsNullOrEmpty(trimmedDat) &&
+                                (trimmedDat[0] == '{' || trimmedDat[0] == '['))
                             {
-                                var mach = MainWindowViewModel._machineTable.Select("Enterprise='" + deserializedPerson.SERVEREnterprise +
-                                   "'and MachineName='" + deserializedPerson.SERVERMachineName + "'");
-                                if (mach.Length > 0)
+                                Personm deserializedPerson = JsonSerializer.Deserialize<Personm>(trimmedDat)!;
+                                Application.Current.Dispatcher.Invoke(() =>
                                 {
-                                    //刷新设备信息表
-                                    DataRow dataRow = mach.First();
-                                    dataRow.BeginEdit();
-                                    dataRow["ID"] = client.Id;
-                                    dataRow["IP"] = client.IP;
-                                    dataRow["Start"] = 30;
-                                    dataRow["Enterprise"] = "/" + deserializedPerson.SERVEREnterprise;
-                                    dataRow["MachineName"] = deserializedPerson.SERVERMachineName;
-                                    dataRow["MachineVer"] = deserializedPerson.MachineVer;
-                                    dataRow.EndEdit();
-                                    dataRow.AcceptChanges();
-                                }
-                                else
-                                {
-                                    //添加设备信息表
-                                    MainWindowViewModel._machineTable.Rows.Add(client.Id, client.IP, 30, "/" + deserializedPerson.SERVEREnterprise,
-                                        deserializedPerson.SERVERMachineName, DateTime.Now.ToString(), deserializedPerson.MachineVer);
-                                }
-                            });
+                                    var mach = MainWindowViewModel._machineTable.Select("Enterprise='" + deserializedPerson.SERVEREnterprise +
+                                       "'and MachineName='" + deserializedPerson.SERVERMachineName + "'");
+                                    if (mach.Length > 0)
+                                    {
+                                        //刷新设备信息表
+                                        DataRow dataRow = mach.First();
+                                        dataRow.BeginEdit();
+                                        dataRow["ID"] = client.Id;
+                                        dataRow["IP"] = client.IP;
+                                        dataRow["Start"] = 30;
+                                        dataRow["Enterprise"] = "/" + deserializedPerson.SERVEREnterprise;
+                                        dataRow["MachineName"] = deserializedPerson.SERVERMachineName;
+                                        dataRow["MachineVer"] = deserializedPerson.MachineVer;
+                                        dataRow.EndEdit();
+                                        dataRow.AcceptChanges();
+                                    }
+                                    else
+                                    {
+                                        //添加设备信息表
+                                        MainWindowViewModel._machineTable.Rows.Add(client.Id, client.IP, 30, "/" + deserializedPerson.SERVEREnterprise,
+                                            deserializedPerson.SERVERMachineName, DateTime.Now.ToString(), deserializedPerson.MachineVer);
+                                    }
+                                });
+                            }
                             Console.WriteLine("[" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + " LINK ID " + client.Id + " IP " + client.IP + "]\nDATA =" + DAT);
 
                         }