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I mocked web-service via SoapUI 4.6.2, that service is client side authenticated.

I tried to connect to the service by the following code:

ServicePointManager.CertificatePolicy = new MyCertificateValidation();

            MyService.Url = "https://MyIP:9988/mockService?WSDL";
            NetworkCredential netCred = new NetworkCredential(
                "User", "password");
            ICredentials credentials = netCred.GetCredential(MyService.Url, "Basic");
            MyService.Credentials = credentials;
            MyService.PreAuthenticate = true;
            var resp = MyService.GetXmlObject();

And this is the definition for MyCertificateValidation() :

class MyCertificateValidation : ICertificatePolicy
    private const uint CERT_E_UNTRUSTEDROOT = 0x800B0109;

    public MyCertificateValidation()

public bool CheckValidationResult(ServicePoint sp, X509Certificate cert, WebRequest req, int problem)
    bool returnValue = true;

    if((uint)problem == CERT_E_UNTRUSTEDROOT)

            returnValue = true;
    return returnValue;

Issue is i am getting the "Could not establish secure channel for SSL/TLS" exception while trying to sent request to the server.

And this is the stackTrace:

at System.Net.HttpWebRequest.finishGetResponse()
at System.Net.HttpWebRequest.GetResponse()
at System.Web.Services.Protocols.WebClientProtocol.GetWebResponse(WebRequest request)
at System.Web.Services.Protocols.HttpWebClientProtocol.GetWebResponse(WebRequest request)
at System.Web.Services.Protocols.SoapHttpClientProtocol.doInvoke(String methodName, Object[] parameters, WebClientAsyncResult asyncResult)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)

I am making the app for Windows mobile 6.5.
Updated 30-Jan-14 19:07pm

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