<system.serviceModel>
<extensions>
  <bindingExtensions>
    <add name="MaxClockSkewBinding" type="Microsoft.ServiceModel.Samples.MaxClockSkewBinding, MaxClockSkewBinding,
            Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
  </bindingExtensions>
</extensions>
<bindings>
  <customBinding>
    <binding name="MaxClockSkewBinding">
      <transactionFlow />
      <security authenticationMode="SecureConversation">
        <secureConversationBootstrap authenticationMode="UserNameOverTransport">
          <localClientSettings maxClockSkew="00:30:00" />
        </secureConversationBootstrap>
        <localClientSettings maxClockSkew="00:30:00" />
      </security>
      <httpsTransport />
    </binding>
  </customBinding>

channelFactory = new ChannelFactory<TProxy>("*");
            channelFactory.Credentials.ServiceCertificate.Authentication.CertificateValidationMode = X509CertificateValidationMode.None;
            //channelFactory.Credentials.ServiceCertificate.Authentication.RevocationMode = X509RevocationMode.NoCheck;
            //channelFactory.Credentials.ClientCertificate.Certificate = new X509Certificate2(Certificate, CertificatePass);
            channelFactory.Credentials.UserName.UserName = UserName;
            channelFactory.Credentials.UserName.Password = PassWord;
            var proxy = (IClientChannel)channelFactory.CreateChannel();