C# HTTP请求未经PBBI的客户端身份验证授权

我试图通过web服务连接我的dev PBBI服务器以验证地址。看起来我对身份验证有问题。我没有这方面的文件。若你们有任何关于验证服务的线索，我有什么方法来验证

例外情况

 <system.serviceModel>
    <bindings>
        <basicHttpBinding>
          <binding name="ValidateAddressSoapBinding" >
             <security mode="TransportCredentialOnly">
              <transport clientCredentialType="Basic"/>
            </security>
          </binding>
        </basicHttpBinding>
    </bindings>
    <client>
        <endpoint address="http://webserviceURL:8080/soap/ValidateAddress"
            binding="basicHttpBinding" bindingConfiguration="ValidateAddressSoapBinding"
            contract="PBBIWebService.ValidateAddress" name="ValidateAddressPort"  />
    </client>
</system.serviceModel>

mscorlib.dll中发生类型为“System.ServiceModel.Security.MessageSecurityException”的未处理异常

其他信息：HTTP请求未经客户端身份验证方案“Ntlm”授权。从服务器接收的身份验证标头为“Basic realm=“DCGRealm””

代码

var validateClient = new ValidateAddressClient("ValidateAddressPort");
 validateClient.ClientCredentials.UserName.UserName ="Admin";
 validateClient.ClientCredentials.UserName.Password = "ADMIN";

 var address1 = new input_portAddress
 {
      AddressLine1 = "1825B Kramer Lane",
      AddressLine2 = "Suite 100",
      PostalCode = "78758",
      City = "Austin",
      StateProvince = "Texas"
  };
  var addresses = new input_portAddress[2];
  addresses[0] = address1;
  var options = new options {OutputCasing = OutputCasing.M};
  output_portAddress[] results =
                    validateClient.ValidateAddress(options, addresses);//Exception happening here.

配置

 <system.serviceModel>
    <bindings>
        <basicHttpBinding>
          <binding name="ValidateAddressSoapBinding" >
             <security mode="TransportCredentialOnly">
              <transport clientCredentialType="Basic"/>
            </security>
          </binding>
        </basicHttpBinding>
    </bindings>
    <client>
        <endpoint address="http://webserviceURL:8080/soap/ValidateAddress"
            binding="basicHttpBinding" bindingConfiguration="ValidateAddressSoapBinding"
            contract="PBBIWebService.ValidateAddress" name="ValidateAddressPort"  />
    </client>
</system.serviceModel>

---

如何解决此问题？

对于配置，请更新此部分

system.serviceModel>bindings>basicHttpBinding

<basicHttpBinding>
  <binding name="ValidateAddressSoapBinding" >
      <security mode="Transport">
      <transport clientCredentialType="Basic"/>
    </security>
  </binding>
</basicHttpBinding>