Getting Error when transferring file through FTPS (with TLS) though Connection to the server is being established.

I am not able to transfer text file over FTPS (with TLS). I am able to establish connection with FTPS server. Able to change the directory, but whenever i am trying to upload the file i am getting below log error. I have given both code details as well as error log details. please help.

Below is my code snippet for transferring file through FTPS server.

Chilkat.Ftp2 ftp = new Chilkat.Ftp2();

            bool success;

            //  Any string unlocks the component for the 1st 30-days.
            success = ftp.UnlockComponent("Anything for 30-day trial");
            if (success != true)
            {
                Console.WriteLine(ftp.LastErrorText);
                return ftp.LastErrorText;
            }

            //  If this example does not work, try using passive mode
            //  by setting this to true.
            ftp.Passive = true;
            ftp.Hostname = parameters.HostName;
            ftp.Username = parameters.UserName;
            ftp.Password = parameters.Password;
            ftp.Port = 20017;

            //  We don't want AUTH SSL:
            ftp.AuthTls = true;

            //  We want Implicit SSL:
            ftp.Ssl = false;

            //  Connect and login to the FTP server.
            success = ftp.Connect();
            if (success != true)
            {
                Console.WriteLine(ftp.LastErrorText);
                ftp.Disconnect();
                return ftp.LastErrorText;
            }
            else
            {
                //  LastErrorText contains information even when
                //  successful. This allows you to visually verify
                //  that the secure connection actually occurred.
                Console.WriteLine(ftp.LastErrorText);
                Console.WriteLine("FTPS Channel Established!");

                success = ftp.ChangeRemoteDir("/");
                if (success != true)
                {
                    return ftp.LastErrorText;//Directory Change Error.

                }
                else
                {
                    //string localfilename = "\\hgsqlp14\\Transfer\\BI\\PWC-t\\test.txt";
                    //string remotefilename = "test.txt";

                    //byte[] dataBytes = ConvertToArray(fileStream);

                    success = ftp.PutFile("C:\\Test\\test.txt", "test.txt");

                    if (success != true)
                    {
                        //ftp.Disconnect();
                        return  "---------Upload Error  --------- " + ftp.LastErrorText + "---" ;//Upload Error.
                    }
                    else
                    {
                        ftp.Disconnect();
                        return "File Uploaded sucessfully.";
                    }

                }
            }

The Error log got from Chilkat -

---------Upload Error  --------- ChilkatLog:
  PutFile:
    DllDate: Aug 30 2017
    ChilkatVersion: 9.5.0.69
    UnlockPrefix: Anything for 30-day trial
    Architecture: Little Endian; 32-bit
    Language: .NET 4.5
    VerboseLogging: 0
    RemoteFilename: test.txt
    LocalFilename: C:Testtest.txt
    ProgressMonitoring:
      enabled: yes
      heartbeatMs: 0
      sendBufferSize: 65536
    --ProgressMonitoring
    IdleTimeoutMs: 60000
    ReceiveTimeoutMs: 60000
    ConnectTimeoutSeconds: 30
    soRcvBuf: 4194304
    soSndBuf: 262144
    uploadFromLocalFile:
      localFileSize: 39
      uploadFromDataSource:
        initialGreeting: 220 PwC CFT FTP Server
        restartNext: 0
        modeZ: 0
        binaryMode: 1
        pbsz_protp:
          simpleCommand:
            sendCommand:
              sendingCommand: PROT P
            --sendCommand
            readCommandResponse:
              replyLineQP: 200 Protection level set to P
            --readCommandResponse
          --simpleCommand
        --pbsz_protp
        setupDataConnection:
          passive transfer mode
          setupPassiveDataSocket:
            sendCommand:
              sendingCommand: PASV
            --sendCommand
            readCommandResponse:
              replyLineQP: 227 Entering Passive Mode (172,31,120,157,19,203)
            --readCommandResponse
            dataConnect:
              hostname: 172.31.120.157
              port: 5067
              socket2Connect:
                connect2:
                  ConnectFailReason: Connection rejected
                  A few possible causes for a connection being rejected are:
                  - A firewall (software or hardware), such as Windows Firewall, is blocking the connection .
                  - Nothing is listening at the remote host:port
                --connect2
              --socket2Connect
              dataConnectSuccess: 0
            --dataConnect
            setupPassiveDataSocket dataConnect failed.
          --setupPassiveDataSocket
          Failed to setup passive data socket
        --setupDataConnection
        Failed to setup data connection for upload.
        readRepliesAfterFailedDataConn:
          readCommandResponse:
            Failed to read beginning of SSL/TLS record.
            b: 0
            dbSize: 0
            nReadNBytes: 0
            idleTimeoutMs: 1000
            Failed to receive more TLS application data.
            tlsApp: Socket operation timeout.
            elapsedMs: Elapsed time: 1031 millisec
            Failed to read FTP control channel reply.
            readFtpReply: Socket operation timeout.
          --readCommandResponse
        --readRepliesAfterFailedDataConn
      --uploadFromDataSource
      Failed.
    --uploadFromLocalFile
    TotalTime: Elapsed time: 22219 millisec
    Failed.
  --PutFile
--ChilkatLog