C＃ - TcpClient - 由于目标机器主动拒绝而无法建立连接

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您好，我目前正在每分钟创建一个与斑马打印机的新连接，并且它可以正常工作5到8个小时。之后，我得到了“无法建立连接，因为目标机器主动拒绝了”错误。一旦出现此错误，在完全关闭并打开Zebra打印机的电源之前，无法重新连接打印机。C＃ - TcpClient - 由于目标机器主动拒绝而无法建立连接

我我没有正确关闭我的TcpClient的蒸汽或什么都不会造成约300后出现错误重新连接

我的代码：

//CLASS MEMBERS 
private TcpClient client = new TcpClient(); 
private Timer TimZebraTimeOut; 
private int ZebraTimeOutTime = 60000; 
private bool NewConnectionNeeded = true; 

//NORMALY CALLED IN CONSTRUCTOR 
TimZebraTimeOut = new Timer(TimZebraTimeOutCallback, null,this.ZebraTimeOutTime, Timeout.Infinite); 

//CLASS METHODS 
private void CreateNewConnectionIfComTimeOut 
{ 
    try 
    { 
     if (this.NewConnectionNeeded) // If time is out Create new connection with Zebra Printer 
     { 
      //Close last connexion open 
      client.Client.Close(); 
      //Create a new one 
      client = new TcpClient(); 
      // Add Read/Write TimeOut 
      client.SendTimeout = 10000; 
      client.ReceiveTimeout = 10000;      
      //Create TCP Connection 
      client.Connect(this.config.IpAddress, this.config.Port); 
      // Connection with PrinterEstablished 
      this.NewConnectionNeeded = false; 
      this.iLog.Info("CommunicationWithZebraPrinter : New connection With Labeler Established "); // If New connection not caused by timeout 

     } 
    } 
    catch (Exception exception) 
    { 
     // Write exception in Log 
     this.iLog.Error("CommunicationWithZebraPrinter : Can't establish a connection with printer: " + exception.Message.ToString()); 
    } 
} 

// Zebra Communication Timer interrupt callback function 
private void TimZebraTimeOutCallback(Object state) 
{ 
    // Flag That ZebraCom have timeout 
    this.NewConnectionNeeded= true; 
    //Restart Zebra Com TimeOut 
    TimZebraTimeOut.Change(this.ZebraTimeOutTime, Timeout.Infinite); 
}

非常感谢

丹尼尔

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