WCF : The request for security token could not be satisfied because authentication failed

 

In full:

System.ServiceModel.Security.SecurityNegotiationException The caller was not authenticated by the service. System.ServiceModel.FaultException: The request for security token could not be satisfied because authentication failed.

I see this when the WS call is cross domain on wsHttpBinding.

Quick and dirty is to remove the security (or move to basicHttpBinding).

Not recommended on a Production system but to get over the hump …

On the client side change:

<wsHttpBinding>
        <binding name="WSHttpBinding_IService"  >
         <security mode="None" />
        </binding>
</wsHttpBinding>

On the WS side change:

<system.serviceModel>
    <services>
      <service name=xxx">
        <endpoint address="" binding="wsHttpBinding" contract="WcfServiceLibrary.IService" bindingConfiguration="NoSecurityConfig">
          <identity>
            <dns value="yyy" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
    </service>     
    </services>
    
    <bindings>
        <wsHttpBinding>
            <binding name="NoSecurityConfig">
                <security mode="None" />
            </binding>
        </wsHttpBinding>
    </bindings>

Essentially, the changes are to add the “security mode = None” and to add the new bindingConfiguration ="NoSecurityConfig" and then specify the binding for it.

Enjoy!