I have a Sharepoint 2010 farm with one WFE server, one application server, and a separate SQL Server 2008 R2 server. SSRS 2012 is installed on the Sharepoint application server, and the Reporting Services 2012 add-in is installed on the WFE server.
The farm hosts two Sharepoint applications, both are using claims based authentication. For the main one on port 80/443 I have enabled authentication using both Kerberos, and Trusted Identity provider (ADFS 2.0), for the other application I have enabled NTLM authentication only.
I am now trying to access the report libraries on those applications using either Report Builder 3.0, or Visual Studio, but I am getting the following error while accessing the application on 80/443:
Microsoft.ReportingServices.Diagnostics.Utilities.AccessDeniedException: The permissions granted to user 'NT AUTHORITY\ANONYMOUS LOGON' are insufficient for performing this operation
On the other application (using NTLM only), I am able to access the libraries from Report Builder and VS without any issues. I am accessing using the same user in both cases (a Sharepoint administrator account).
What could be the reason for this issue? How is it possible to troubleshoot the failed authentication.