Configure your server to host RIA Service app using Windows Authentication

If you are using the WCF RIA Services PDC bits and your app is using windows authentication with ASP.NET built-in user management system, make sure you do the following steps to your hosting server:

1. Open IIS manager, browse to the vitual directory of your app, disable all other authentication modes except Windows Authentication mode

2. Set the application pool identity to NETWORK SERVICE

3. Browse to the physical folder for your app, make NETWORK SERVICE have full control over that folder