Symptoms
When you use custom authentication in Microsoft SQL Server 2014 or 2016 Reporting Services (SSRS), you experience a System.NullReferenceException error when you render reports, and you receive an error message that resembles the following in the Reporting Services log:
library!ReportServer_0-1!277c!Date-Time:: e ERROR: Throwing Microsoft.ReportingServices.Diagnostics.Utilities.InternalCatalogException: , Microsoft.ReportingServices.Diagnostics.Utilities.InternalCatalogException: An internal error occurred on the report server. See the error log for more details. ---> System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.ReportingServices.Diagnostics.Globals.get_IsAnonymous() at Microsoft.ReportingServices.WebServer.Global.EnableAntiDos() at Microsoft.ReportingServices.WebServer.Global.Application_EndRequest(Object sender, EventArgs e) --- End of inner exception stack trace ---;
Resolution
This issue is fixed in the following cumulative updates for SQL Server:
Cumulative Update 7 for SQL Server 2016 RTM
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:Latest cumulative update for SQL Server 2014
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the terminologythat Microsoft uses to describe software updates.
