I'm trying to create a LightSwitch management panel for a web-based app. Thats why I was setting up a WCF RIA service to interface with the WCF service of the web app. While testing the loading of the users, I discovered that LightSwitch said that it couldn't load the resource. The Immediate Window told me that a System.InvalidOperationException had occured within System.ServiceModel.dll but VS didnt actually point me towards the loc where the error would have originated. After some line for line code execution, I discovered it choked at the instantiation of the WCF proxy.
An example of the code on the WCF RIA service Class:
Public Class RIAInterface
Inherits DomainService
Private WCFProxy As New Service.UserClient() '<-- Choke Point
Public Sub New()
WCFProxy.Open()
End Sub
<Query(IsDefault:=True)>
Public Function GetUsers() As IQueryable(Of User)
Dim TempList As New List(Of User)
For Each User As Service.User In WCFProxy.GetUsers()
TempList.Add(New User With {.ID = User.ID, .FullName = User.FullName, .EmailAddress = User.Email, .Username = User.UserName, .Class = User.Class.Name, .AccountType = User.Privilege.Name})
Next
Return TempList.AsQueryable
End Function
End Class
After some fooling arround with the RIA service and LightSwitch, something changed. I ran the app and got an actual exception.
Exception Details:
Could not find endpoint element with name 'EduNetBackEnd_IUser' and contract 'EduNet.IUser' in the ServiceModel client configuration section. This might be because no configuration file was found for your application, or because no endpoint element matching this name could be found in the client element.
This is the the ServiceModel configuration in the App.config:
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="EduNetBackEnd_IUser" closeTimeout="00:01:00" openTimeout="00:01:00"
receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false"
transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:15:00"
enabled="true" />
<security mode="None">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Windows" negotiateServiceCredential="true" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="[Service_Address]"
binding="wsHttpBinding" bindingConfiguration="EduNetBackEnd_IUser"
contract="EduNet.IUser" name="EduNetBackEnd_IUser" />
</client>
</system.serviceModel>
Must be doing something awfully wrong here. Here is what I'm trying to do.
I have a Message handler that should get a message from the queue. Make a WCF call, do stuff and when done, send a new message out on the bus.
It is hosted in the NServiceBus.Host.Exe.
But, whenever I create the Service Client, eveything comes to a grinding halt. If I comment out the service call everything works great... Except, I need that call.
Is there a trick I must do to make WCF calls from my Message Handler when hosting it in the NServiceBus.Host.Exe? I have not made any special config in the EndPointConfig class.
public class EndpointConfig :
IConfigureThisEndpoint, AsA_Server { }
public class RequestAccountUpdateMessageHandler : IHandleMessages<RequestAccountUpdateMessage>
{
public void Handle(RequestAccountUpdateMessage message)
{
// The Line below hangs everything
AccountService.AccountServiceClient client =
new AccountService.AccountServiceClient();
resp = client.DoStuff(message.parameter);
Bus.Send<UpdateAccountMessage>(m =>
{
m.info = DoMagicStuffHere(resp);
});
}
...
}
This is what the system.serviceModel looks like in the App.Config
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_IAccountService" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:01:00" sendTimeout="00:01:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384"/>
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None" realm=""/>
<message clientCredentialType="UserName" algorithmSuite="Default"/>
</security>
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://yadayafa/accountservice.svc" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IAccountService" contract="AccountService.IAccountService" name="BasicHttpBinding_IAccountService"/>
</client>
</system.serviceModel>
I've successfully got a few workflows going with Server AppFabric.
What i have noticed however is that when i try to use namePipeBinding to communicate with the workflow then the call works successfully for the client (the call is marked As IsOneWay=true in the interface definition for the service) but in the AppFabric dashboard i can see the message being processed successfully and then we get the call appearing as a 'Service Exception' with the following exception
System.ServiceModel.CommunicationException: There was an error reading from the pipe: The pipe has been ended. (109, 0x6d). ---> System.IO.IOException: The write operation failed, see inner exception. ---> System.ServiceModel.CommunicationException: There was an error reading from the pipe: The pipe has been ended. (109, 0x6d). ---> System.IO.PipeException: There was an error reading from the pipe: The pipe has been ended. (109, 0x6d).
at System.ServiceModel.Channels.PipeConnection.OnAsyncReadComplete(Boolean haveResult, Int32 error, Int32 numBytes)
--- End of inner exception stack trace ---
at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Channels.ConnectionStream.ReadAsyncResult.End(IAsyncResult result)
at System.Net.FixedSizeReader.ReadCallback(IAsyncResult transportResult)
--- End of inner exception stack trace ---
at System.Net.Security.NegotiateStream.EndRead(IAsyncResult asyncResult)
at System.ServiceModel.Channels.StreamConnection.EndRead()
--- End of inner exception stack trace ---
at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Channels.FramingDuplexSessionChannel.TryReceiveAsyncResult.End(IAsyncResult result, Message& message)
at System.ServiceModel.Dispatcher.DuplexChannelBinder.EndTryReceive(IAsyncResult result, RequestContext& requestContext)
at System.ServiceModel.Dispatcher.ErrorHandlingReceiver.EndTryReceive(IAsyncResult result, RequestContext& requestContext)
The workflow consists of two receive activities but it doesn't have any receiveandsendreply activitiies.
Everything works fine when i use http bindings.
Why is this error being reported in the dashboard?
Configuration details for the client app are shown below
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_ISLG" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
useDefaultWebProxy="true">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="None">
<transport clientCredentialType="None" proxyCredentialType="None"
realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
</binding>
</basicHttpBinding>
<netNamedPipeBinding>
<binding name="NetNamedPipeBinding_ISLG" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
transactionFlow="false" transferMode="Buffered" transactionProtocol="OleTransactions"
hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288"
maxBufferSize="65536" maxConnections="10" maxReceivedMessageSize="65536">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<security mode="Transport">
<transport protectionLevel="EncryptAndSign"/>
</security>
</binding>
</netNamedPipeBinding>
</bindings>
<client>
<endpoint address="net.pipe://vm-vsnet2010/TestWorkflowDeclarativeServiceLibrary/Service3.xamlx"
binding="netNamedPipeBinding" bindingConfiguration="NetNamedPipeBinding_ISLG"
contract="SLGService.ISLG" name="NetNamedPipeBinding_ISLG">
<identity>
<servicePrincipalName value="host/VM-VSNET2010" />
</identity>
</endpoint>
</client>
</system.serviceModel>
Can you submit the server binding configuration? They may differ and that's why the server can't receive data from the pipe.
Regards
We have a requirement to call a WCF service from another WCF Service. To test this I build a sample console application to display a simple string. The setup is:
Console App -> WCF Service 1 -> WCF Service 2
Console App calls a method of service 1 and the service 1 method eventually calls service 2 method to return a string. I am able to call Console -> Service 1 but Service 1 -> Service 2 is not working. It throws an exception:
"Could not find default endpoint element that references contract 'ITestService2' in the ServiceModel client configuration section. This might be because no configuration file was found for your application, or because no endpoint element matching this contract could be found in the client element."
To accomplish this, I have created a WCF Service 2 with one method that returns a string (nothing fancy).
namespace TestServices
{
[ServiceContract]
public interface ITestService2
{
[OperationContract]
string GetSomething(string s);
}
}
Then I create service1 - ITestService1.cs and TestService1.cs that consumes service2 method GetSomething().
namespace TestServices
{
[ServiceContract]
public interface ITestService1
{
[OperationContract]
string GetMessage(string s);
}
}
namespace TestServices
{
class TestService1 : ITestService1
{
public string GetMessage(string s)
{
TestService2 client = new TestService2();
return client.GetSomething("WELCOME " + s);
}
}
}
Note: I create a proxy for Service2 using svcutil.exe. It creates a app.config and TestService2.cs files that I copied in TestService1 project folder to reference.
Finally, I created the console app that just creates an instance of Service1 and calls the GetMessage() method.
static void Main(string[] args)
{
TestService1 client = new TestService1();
Console.WriteLine(client.GetMessage("Roger Harper"));
Console.ReadKey();
}
When I call the service 2 directly from Console application, it works without any issue. The same config and proxy class when copied with in service 1. It throws error. The config file looks like:
config file for service 1 in console application:
<configuration>
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="WSHttpBinding_ITestService1" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="Message">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Windows" negotiateServiceCredential="true"
algorithmSuite="Default" establishSecurityContext="true" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:3227/WCFTestSite/TestService1.svc"
binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ITestService1"
contract="ITestService1" name="WSHttpBinding_ITestService1">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
</client>
</system.serviceModel>
</configuration>
config file for service 2 in service1 folder:
<configuration>
<system.serviceModel>
<bindings>
<wsHttpBinding>
<binding name="WSHttpBinding_ITestService2" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="Message">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Windows" negotiateServiceCredential="true"
algorithmSuite="Default" establishSecurityContext="true" />
</security>
</binding>
</wsHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:3227/WCFTestSite/TestService2.svc"
binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ISriWCFTestService2"
contract="ITestService2" name="WSHttpBinding_ITestService2">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
</client>
</system.serviceModel>
</configuration>
Appreciate if someone can help me in resolving this issue. I also tried prefixing the contract name with namespace but it didn't work. Not sure how the same config/proxy works directly from console and not with in another service. Please HELP!!! Thanks in advance.
From my understating you have a console app that is self hosting a wcf service that service is calling a second wcf service. I am guessing you have a wcf service1 defined in dll that the console app loads and then attempts to call. I think your issue may be that sice service 1 is in a dll its not loading the config file where you have defined the link to service 2. Try creating the endpoint programmaticly and see if that gets you thorough the issue.
I've created one WCF service and deployed it on Server. When I browse this service it gives me positive response with ?wsdl URL. Now I'm trying to test the service through WCF Test client. It shows proper metadata. But when I try to invoke any of the method from the service it shows me an exception... here are the erro details with stack trace..
The HTTP request is unauthorized with
client authentication scheme
'Anonymous'. The authentication header
received from the server was
'Negotiate,NTLM'.
Server stack trace:
at
System.ServiceModel.Channels.HttpChannelUtilities.ValidateAuthentication(HttpWebRequest
request, HttpWebResponse response,
WebException responseException,
HttpChannelFactory factory)
The HTTP request is unauthorized with client
authentication scheme 'Anonymous'. The
authentication header received from
the server was 'Negotiate,NTLM'.
Server stack trace:
at
System.ServiceModel.Channels.HttpChannelUtilities.ValidateAuthentication(HttpWebRequest
request, HttpWebResponse response,
WebException responseException,
HttpChannelFactory factory)
Client Bindings:
<bindings>
<wsHttpBinding>
<binding name="WSHttpBinding_IServiceMagicService" closeTimeout="00:01:00"
openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"
maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true"
allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
maxBytesPerRead="4096" maxNameTableCharCount="16384" />
<reliableSession ordered="true" inactivityTimeout="00:10:00"
enabled="false" />
<security mode="None">
<transport clientCredentialType="Windows" proxyCredentialType="None"
realm="" />
<message clientCredentialType="Windows" negotiateServiceCredential="true"
establishSecurityContext="true" />
</security>
</binding>
</wsHttpBinding>
</bindings>
Server Bindings:
<bindings>
<wsHttpBinding>
<binding name="WSHttpBinding_SEOService" closeTimeout="00:10:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="true" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="999524288" maxReceivedMessageSize="655360000" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="900000" maxArrayLength="900000" maxBytesPerRead="900000" maxNameTableCharCount="900000" />
<reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" />
<security mode="None">
<transport clientCredentialType="Windows" proxyCredentialType="None" realm="" />
<message clientCredentialType="Windows" negotiateServiceCredential="true" establishSecurityContext="true" />
</security>
</binding>
<binding name="WSHttpServiceMagicBinding" closeTimeout="00:10:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="true" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="999524288" maxReceivedMessageSize="655360000" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="900000" maxArrayLength="900000" maxBytesPerRead="900000" maxNameTableCharCount="900000"/>
<reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false"/>
<security mode="None">
<transport clientCredentialType="Windows" proxyCredentialType="None" realm=""/>
<message clientCredentialType="Windows" negotiateServiceCredential="true" establishSecurityContext="true"/>
</security>
</binding>
</wsHttpBinding>
</bindings>
Client's Client Section:
<client>
<endpoint address="http://hydwebd02.solutions.com/GeoService.Saveology.com/ServiceMagicService.svc"
binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IServiceMagicService"
contract="IServiceMagicService" name="WSHttpBinding_IServiceMagicService" />
</client>
Server's Services Section:
<services>
<service behaviorConfiguration="GeoService.Saveology.com.CityStateServiceProviderBehavior"
name="GeoService.Saveology.com.CityStateServiceProvider">
<endpoint binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_SEOService"
contract="SEO.Common.ServiceContract.ICityStateService" />
<endpoint address="mex" binding="mexHttpBinding" bindingConfiguration=""
contract="IMetadataExchange" />
</service>
<service behaviorConfiguration="GeoService.Saveology.com.ServiceMagicServiceProviderBehavior"
name="GeoService.Saveology.com.ServiceMagicServiceProvider">
<endpoint binding="wsHttpBinding" bindingConfiguration="WSHttpServiceMagicBinding"
contract="SEO.Common.ServiceContract.IServiceMagicService">
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" bindingConfiguration="" contract="IMetadataExchange" />
</service>
</services>
I didn't have control over the security configuration for the service I was calling into, but got the same error. I was able to fix my client as follows.
In the config, set up the security mode:
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Windows" proxyCredentialType="None" realm="" />
<message clientCredentialType="UserName" algorithmSuite="Default" />
</security>
In the code, set the proxy class to allow impersonation (I added a reference to a service called customer):
Customer_PortClient proxy = new Customer_PortClient();
proxy.ClientCredentials.Windows.AllowedImpersonationLevel =
System.Security.Principal.TokenImpersonationLevel.Impersonation;
I have a similar issue, have you tried:
proxy.ClientCredentials.Windows.AllowedImpersonationLevel =
System.Security.Principal.TokenImpersonationLevel.Impersonation;
Another possible solution to this error that I found. Might not have answered OP's exact question but may help others who stumble across this error message.
I was creating my Client in code using WebHttpBinding, in order to replicate the following line:
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Windows" proxyCredentialType="Windows" />
</security>
I had to do:
var binding = new WebHttpBinding(WebHttpSecurityMode.TransportCredentialOnly);
binding.Security.Transport.ClientCredentialType = HttpClientCredentialType.Windows;
binding.Security.Transport.ProxyCredentialType = HttpProxyCredentialType.Windows;
as well as setting proxy.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;
I had a similar problem and tried everything suggested above. Then I tried changing the clientCreditialType to Basic and everything worked fine.
<basicHttpBinding>
<binding name="BINDINGNAMEGOESHERE" >
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Basic"></transport>
</security>
</binding>
</basicHttpBinding>
I see this isn't answered yet, this is an exact quote from here:
WSHttpBinding will try and perform an internal negotiate at the SSP layer. In order for this to be successful, you will need to allow anonymous in IIS for the VDir. WCF will then by default perfrom an SPNEGO for window credentials. Allowing anonymous at IIS layer is not allowing anyone in, it is deferring to the WCF stack.
I found this via: http://fczaja.blogspot.com/2009/10/http-request-is-unauthorized-with.html
After googling: http://www.google.tt/#hl=en&source=hp&q=+The+HTTP+request+is+unauthorized+with+client+authentication+scheme+%27Anonymous
Here's what I had to do to get this working. This means:
Custom UserNamePasswordValidator (no need for a Windows account, SQLServer or ActiveDirectory -- your UserNamePasswordValidator could have username & password hardcoded, or read it from a text file, MySQL or whatever).
https
IIS7
.net 4.0
My site is managed through DotNetPanel. It has 3 security options for virtual directories:
Allow Anonymous Access
Enable Basic Authentication
Enable Integrated Windows Authentication
Only "Allow Anonymous Access" is needed (although, that, by itself wasn't enough).
Setting
proxy.ClientCredentials.Windows.AllowedImpersonationLevel = System.Security.Principal.TokenImpersonationLevel.Impersonation;
Didn't make a difference in my case.
However, using this binding worked:
<security mode="TransportWithMessageCredential">
<transport clientCredentialType="Windows" />
<message clientCredentialType="UserName" />
</security>
I had the same error today, after deploying our service calling an external service to the staging environment in azure. Local the service called the external service without errors, but after deployment it didn't.
In the end it turned out to be that the external service has a IP validation. The new environment in Azure has another IP and it was rejected.
So if you ever get this error calling external services
It might be an IP restriction.
I had this error too , and finally this codes worked for me in dot net core 3.1
first install svcutil in command prompt : dotnet tool install --global dotnet-svcutil
Then close command prompt and open it again.
Then create the Reference.cs in command prompt :
dotnet-svcutil http://YourService.com/SayHello.svc
(It needs an enter key and UserName and Password)
Add a folder named Connected Services to project root.
Copy Reference.cs file to Connected Services folder.
Add these 4 lines to Reference.cs after lines where creating BasicHttpBinding and setting MaxBufferSize :
result.Security.Mode = BasicHttpSecurityMode.TransportCredentialOnly;
result.Security.Transport.ClientCredentialType = HttpClientCredentialType.Basic;
result.Security.Transport.ProxyCredentialType = HttpProxyCredentialType.None;
result.Security.Message.ClientCredentialType = BasicHttpMessageCredentialType.UserName;
Use this service in your Controller :
public async Task<string> Get()
{
try
{
var client = new EstelamClient();
client.ClientCredentials.UserName.UserName = "YourUserName";
client.ClientCredentials.UserName.Password = "YourPassword";
var res = await client.EmployeeCheckAsync("service parameters");
return res.ToString();
}
catch (Exception ex)
{
return ex.Message + " ************ stack : " + ex.StackTrace;
}
}
Do not forget install these packages in csproj :
<PackageReference Include="System.ServiceModel.Duplex" Version="4.6.*" />
<PackageReference Include="System.ServiceModel.Http" Version="4.6.*" />
<PackageReference Include="System.ServiceModel.NetTcp" Version="4.6.*" />
<PackageReference Include="System.ServiceModel.Security" Version="4.6.*" />
Just got this problem on a development machine (production works just fine). I modify my config in IIS to allow anonymous access and put my name and password as credential.
Not the best way I am sure but it works for testing purposes.
Try providing username and password in your client like below
client.ClientCredentials.UserName.UserName = #"Domain\username";
client.ClientCredentials.UserName.Password = "password";