Win32 Service socket erroe

Question

Hello I'm trying to develop C# windows service. My code works properly in IDE(visual studio console application) but when I build my code with windows service, port opens properly but interactioin failed. So I tried to switch dot net version, reinstalled service, changed timeout, but always failed. I need to send PC info to android application.

using System.Threading.Tasks;
using System.Net.NetworkInformation;
using System.Diagnostics;
using System.Linq;
using System.Net.Sockets;
using System.Net;
using System.ServiceProcess;
using System.Text;
using System.Threading;
using System;
using System.IO;
using System.Runtime.Remoting.Messaging;

namespace Perch_Service
{
    public partial class StartService : ServiceBase
   {
        EventLog eventLog1;
        public StartService()
        {
            InitializeComponent();
            eventLog1 = new System.Diagnostics.EventLog();
            this.AutoLog = true;
            // create an event source, specifying the name of a log that
            // does not currently exist to create a new, custom log
            if (!System.Diagnostics.EventLog.SourceExists("MySource"))
            {
                System.Diagnostics.EventLog.CreateEventSource("MySource", "MyLog");
            }
            // configure the event log instance to use this source name
            eventLog1.Source = "MySource";
            eventLog1.Log = "MyLog";
        }
        protected override void OnStart(string[] args)
        {
            Thread pcRegister = new Thread(PcRegister);
            pcRegister.Start();
        }
        protected override void OnStop()
        {
            eventLog1.WriteEntry("종료");
        }
        public void PcRegister()
        {
            try
            {
                int intPort = 50520;
                TcpListener listener = new TcpListener(IPAddress.Any, intPort);
                listener.Start();
                eventLog1.WriteEntry("포트 열림");
                byte[] buffer = new byte[1024];
                TcpClient tc = listener.AcceptTcpClient();
                NetworkStream ns = tc.GetStream();
                StreamWriter sw = new StreamWriter(ns);
                eventLog1.WriteEntry("스트림 만들기");
                string HostInfo = (GetPcName() + "// AND //" + GetMacAddr());
                sw.WriteLine(HostInfo);
                sw.Flush();
                eventLog1.WriteEntry("데이터 전송됨");
            }
            catch (Exception e)
            {
                eventLog1.WriteEntry("에러발생");
                eventLog1.WriteEntry(e.ToString());
            }
        }
        public static String GetPcName()
        {
            string hostName = System.Net.Dns.GetHostName();
            return hostName;
        }
        public static String GetMacAddr()
        {
            string MacAddr = (from nic in NetworkInterface.GetAllNetworkInterfaces() where nic.OperationalStatus == OperationalStatus.Up select nic.GetPhysicalAddress().ToString()).FirstOrDefault();
            return MacAddr;
        }
   }
}

Error Code in android application

java.net.SocketTimeoutException: failed to connect to /(i deleted my ip) (port 50520( from / 192.168.0.2(port 33218) after 500ms