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Secure channel cannot be opened because security negotiation with the remote endpoint has failed

Posted By:      Posted Date: September 17, 2010    Points: 0   Category :WCF
Please help me to pinpoint what's wrong with the configurations. CoreClient client = new CoreClient(); client.ClientCredentials.UserName.UserName = "test"; client.ClientCredentials.UserName.Password = "test"; string msg = client.SayHello(); //==== ERROR Happens here Error message: Secure channel cannot be opened because security negotiation with the remote endpoint has failed. This may be due to absent or incorrectly specified EndpointIdentity in the EndpointAddress used to create the channel. Please verify the EndpointIdentity specified or implied by the EndpointAddress correctly identifies the remote endpoint. Configurations: Host: <behaviors> <serviceBehaviors> <behavior name="DefaultBehavior"> <serviceMetadata httpGetEnabled="true"/> <serviceDebug includeExceptionDetailInFaults="false"/> <serviceCredentials> <serviceCertificate findValue="MyServerCert" x509FindType="FindBySubjectName" storeLocation="LocalMachine" storeName="My"/> <userNameAuthentication userNamePasswordValidationMode="Custom" customUserNamePasswordValidatorType="Promotion.Services.UsernameValidator, LibraryIIS" /> </serviceCredentials> </behavior>

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after that i create one class file like this

namespace WcfService2
    public class clientcs

        static void Main(string[] args)
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