Our Silverlight Project is based on ArcGIS Map Services and the site is for internal use only in the company.
I can use my local machine to access the sites outside the company successfully such as google.com , but for Windows Server 2008 R2 machines, I can only browse the internal sites including our Silverlight Application.
Message: Unhandled Error in Silverlight Application A security exception occurred while trying to connect to the REST endpoint. Make sure you have a cross domain policy file available at the root for your server that allows for requests from this application. at ESRI.ArcGIS.Client.Layer.OnInitializationFailed(EventArgs e)