Windows Authentication with SSRS ASP.NET ReportViewer and Web Service

Question

I\'m having a few problems using SSRS currently. I have an ASP.NET website that uses Windows Authentication. That works fine and I know the website current user is the currently

Answer 1

Instead of

return (WindowsIdentity)HttpContext.Current.User.Identity;

You could try

return WindowsIdentity.GetCurrent();

Answer 2

I was having my own troubles here but was ultimately successful.

Machine 1: client browser

Machine 2: webserver

Machine 3: SSRS + SQL Server

To solve the double hop I had the IT department turn on Active Directory Delegation for Machine2, setting to "Trust this computer for delegation to any service (Kerberos Only)".

On my webserver I modified the Web.config file to have:

 <authentication mode="Windows"/>
 <identity impersonate="true"/>

On the SSRS server I modified the rsreportserver.config file, adding <RSWindowsNegotiate/> to the <AuthenticationTypes> section. I believe the default is <RSWindowsNTLM/>. I just left both in there, giving me:

I restarted the SSRS server and all started working.

Hope this helps someone!