WCF error: The caller was not authenticated by the service

Question

I am trying to access my WCF service on a server from my client console application for testing. I am getting the following error:

The caller was no

Answer 1

if needed to specify domain(which authecticates username and password that client uses) in webconfig you can put this in system.serviceModel services service section:

<identity>          
<servicePrincipalName value="example.com" />
</identity>

and in client specify domain and username and password:

 client.ClientCredentials.Windows.ClientCredential.Domain = "example.com";
 client.ClientCredentials.Windows.ClientCredential.UserName = "UserName ";
 client.ClientCredentials.Windows.ClientCredential.Password = "Password";

Answer 2

I got it.

If you want to use wshttpbinding, u need to add windows credentials as below.

svc.ClientCredentials.Windows.ClientCredential.UserName = "abc";
svc.ClientCredentials.Windows.ClientCredential.Password = "xxx";

thanks

Answer 3

If you use basicHttpBinding, configure the endpoint security to "None" and transport clientCredintialType to "None."

<bindings>
    <basicHttpBinding>
        <binding name="MyBasicHttpBinding">
            <security mode="None">
                <transport clientCredentialType="None" />
            </security>
        </binding>
    </basicHttpBinding>
</bindings>
<services>
    <service behaviorConfiguration="MyServiceBehavior" name="MyService">
        <endpoint 
            binding="basicHttpBinding" 
            bindingConfiguration="MyBasicHttpBinding"
            name="basicEndPoint"    
            contract="IMyService" 
        />
</service>

Also, make sure the directory Authentication Methods in IIS to Enable Anonymous access

Answer 4

This can be caused if the client is in a different domain than the server.

I encountered this when testing one of my applications from my PC(client) to my (cloud) testing server and the simplest solution i could think of was setting up a vpn.