.net connector 3 connection failed

[Former Member]

I'm a beginner just started the integration with SAP.

I'm using VS2013 on Windows 7 64bit.

Here's some of my test code in C#:

namespace SapTestClient

{

class SapConfig : IDestinationConfiguration

{

public bool ChangeEventsSupported() { return true; }

public event RfcDestinationManager.ConfigurationChangeHandler ConfigurationChanged;

public RfcConfigParameters GetParameters(string destinationName)

{

if (destinationName.Equals("test")) {

RfcConfigParameters parms = new RfcConfigParameters();

parms.Add(RfcConfigParameters.AppServerHost, "10.65.34.30");

parms.Add(RfcConfigParameters.SystemNumber, "01");

parms.Add(RfcConfigParameters.SystemID, "ENH");

parms.Add(RfcConfigParameters.User, "MY_USERNAME");

parms.Add(RfcConfigParameters.Password, "MY_PASSWD");

parms.Add(RfcConfigParameters.Client, "001");

parms.Add(RfcConfigParameters.Language, "EN");

parms.Add(RfcConfigParameters.PoolSize, "5");

return parms;

}

return null;

}

}

class Program {

static void Main(string[] args)

{

string destName = "test";

SapConfig sc = new SapConfig();

RfcDestinationManager.RegisterDestinationConfiguration(sc);

RfcDestination dest = RfcDestinationManager.GetDestination(destName);

try {

Console.WriteLine("RfcDestination.Ping():");

dest.Ping();

}

catch (RfcCommunicationException ce)

{

int rc = ce.ErrorCode; string strRC = "RC : " + rc; Console.WriteLine(strRC);

Console.WriteLine(ce.ToString());

}

Console.ReadLine();

}

}

}

MY_USERNAME, MY_PASSWORD are those of I use to log on the sinvpn.coil.sap.com.

And the ping execption messages are:

RfcDestination.Ping():

RC : 107

SAP.Middleware.Connector.RfcCommunicationException:

LOCATION CPIC (TCP/IP) on local host PC with Unicode

ERROR partner '10.65.34.30:3301' not reached

TIME Thu Jan 26 11:43:38 2017

RELEASE 721

COMPONENT NI (network interface)

VERSION 40

RC -10

MODULE nixxi.cpp

LINE 3283

DETAIL NiPConnect2: 10.65.34.30:3301

SYSTEM CALL connect

ERRNO 10061

ERRNO TEXT WSAECONNREFUSED: Connection refused

COUNTER 2

at SAP.Middleware.Connector.CpicConnection.ConnectAsClient(Dictionary`2 options, Boolean forRepository)

at SAP.Middleware.Connector.RfcConnection.ConnectAsClient(RfcDestination destination, Boolean forRepository)

at SAP.Middleware.Connector.RfcConnectionPool..ctor(RfcDestination destination, Boolean forRepositoryCalls)

at SAP.Middleware.Connector.RfcConnectionPool.GetPool(RfcDestination destination, Boolean forRepository, Boolean create)

at SAP.Middleware.Connector.RfcDestination.GetClient(Boolean forRepository) at SAP.Middleware.Connector.RfcDestination.Ping()

at SapTestClient.Program.Main(String[] args) file E:\Projects\SapClient\SapClient\Program.cs: line 62

I opened port 3300-3399 in Windows Defender. However, when I try "telnet 10.65.34.30 3301", it failed.

I also checked port listings in the C:\Windows\System32\drivers\etc\services file.

What Did I done wrong?

[Former Member]

Hi there!! I have almost the same issue... have you ever solved the problem???