We have a .NET Application on separate server, which build reports from Reporting Services 2008 on its own server.
Windows Authentication works, as the browser picks up the users Credentials, but upon building the report the Application Crashes
EVENT ID 1309
and System.Net.WebException: The request failed with HTTP status 401: Unauthorized
.NET application is a Windows 2008 R2, and Reporting Services server is Windows 2008.