C# System.Net.Sockets.SocketException 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败

我的C# udp通信协议有时候运行正常，有时候出现问题，不知道是什么情况，具体代码如下：

  private static void RecieveData()
        {
            byte[] CmdStart_02 = new byte[8] { 0x12, 0x34, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00 };
            byte[] CmdSetBias = new byte[8] { 0x12, 0x34, 0x00, 0x42, 0x00, 0x00, 0x00, 0x00 };

            byte[] data = new byte[1024];
           // string input, stringData;
            //构建TCP 服务器
            Console.WriteLine("This is a Client, host name is {0}", Dns.GetHostName());
            //设置服务IP，设置TCP端口号
            IPEndPoint ipep = new IPEndPoint(IPAddress.Parse("192.168.1.1"), 49152);
            //定义网络类型，数据连接类型和网络协议UDP
            Socket server = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
            server.SendTo(CmdStart_02, CmdStart_02.Length, SocketFlags.None, ipep);
            server.SendTo(CmdSetBias, CmdSetBias.Length, SocketFlags.None, ipep);

            IPEndPoint sender = new IPEndPoint(IPAddress.Any, 0);
            try
            {
                server.Connect(sender);
            }
            catch (System.Exception e)
            {
                Console.WriteLine("unable to connect the server");
                Console.WriteLine(e.ToString());
                return;

            }
            EndPoint Remote = (EndPoint)sender;
            Console.WriteLine("Message received from {0}: ", Remote.ToString());
            data = new byte[1024];

           server.SetSocketOption(SocketOptionLevel.Socket,SocketOptionName.ReceiveTimeout,1000);
           server.Blocking = true;
            int recv = 0;
            try
            {
                recv = server.ReceiveFrom(data, ref Remote);
                Console.WriteLine(Remote.ToString());
                }
            catch (System.Exception e)
            {
                Console.WriteLine(e);
                Console.WriteLine(e.ToString());
            }
            Console.WriteLine("Message received from {0}: ", Remote.ToString());
            Console.WriteLine(Encoding.ASCII.GetString(data, 0, recv));

            while (true)
            {
                data = new byte[1024];
               //  int temp = 0, temp1 = 0;
                int  CountZ;
                try
                {
                    recv = server.ReceiveFrom(data, ref Remote);

                }
                catch (System.Exception e)
                {

                    Console.WriteLine(e.ToString());
                }
                CountZ = data[20] * 16777216 + data[21] * 65535 + data[22] * 256 + data[23];
                prg1.globalCountZ1 = CountZ;
                //输出实时测量到的力传感器数值
                double Zforc;
                Zforc = prg1.globalCountZ1 / 1000000;
               if((count%2000)==0)
                Console.WriteLine(Zforc);
                count++;
            }
           // Console.WriteLine("Stopping Client.");
            server.Close();

        }

  提示的异常为：System.Net.Sockets.SocketException 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。可能问题出在 recv = server.ReceiveFrom(data, ref Remote);上面，如果不出现问题Remote会显示正常的连接IPEndPoint，如果出现问题，Remote会为空。
    恳求大神指点！！！！！！！
--------------------编程问答-------------------- 服务器忙，请稍后再拨...

补充：.NET技术 ,  C#