Solving WCF's windows authentication issue in IIS

System.ServiceModel.ServiceHostingEnvironment+HostingManager/27836922
Exception: System.ServiceModel.ServiceActivationException: The service '/internetbanksignon.svc' cannot be activated due to an exception during compilation. The exception message is: Security settings for this service require Windows Authentication but it is not enabled for the IIS application that hosts this service.. --->
in this case you will need to set windows authentication and change the iis metabase manualy
On your IIS server, start Notepad, and then open the \system32\inetsrv\Metabase.xml file located on the hard disk.
In the section, locate the following line:
NTAuthenticationProviders="NTLM"
Modify the line so that it reads exactly as follows:
NTAuthenticationProviders="Negotiate,NTLM"
Check also the attribute of the solution vdir at the metabse.xml.