401.2 Error Accessing Report Manager

Question

I concede defeat on this one.  I've gone through every configuration option I can think of in order to get this working so I am bowing to those who know more than I do!
I've got a native installation of SSRS 2008 R2 running on W2K8 R2.  Straightforward installation and configuration with the service running under Network Service.  Local DB Engine which has the ReportServer and ReportServerTempDB deployed on to.
But when when I try and run Report Manager to add users as system admins I keep hitting the
401.2: Unauthorized: Logon failed due to server configuration.  To try and overcome this I have done the following:
Run IE as administrator
Disabled UAC
Checked, double-checked and triple-checked Windows authentication configuration for report server.  RSreportserver.config authentication is configured for RSWindowsNTLM, and the web.config files for Report Server and Report Manager authentication is
set to Windows.
The server URL (i.e. http://<servername>) is added to the list of Trusted Sites in IE.
I'm just looking to use NTLM for authentication purposes.  I have configured SSRS countless times without issue, but this one has got me stumped and it seems whatever I do I can't get around this 401.2 error.  Looking in Event Viewer, an ASP.NET
2.0.50727.0 error is logged whenever I'm running the webpage with the following details:
Event code: 4007
Event message: URL authorization failed for the request
Request URL: http://<my server>/Reports/folders/pages.aspx
Request path: /Reports/folders/pages.aspx
User host address: ::1
User: <My network account>
Is authenticated: True
Authentication: NTLM
Thread account name: <My network account>
Any thoughts?

Answer 1

Hi SQLPhil,
According to your description, you configured SSRS 2008 R2 on Windows Server 2008 R2 and use Network Service as service account. When you tried to access report manager, you got the error message: 401.2: Unauthorized: Logon failed due to server configuration.
The error message means that you do not have permission to view this directory or page using the Admin credential. The error occurs when the authentication methods that were tried are either disabled, or you are attempting to use NTLM through a proxy server.
To troubleshoot the problem, please refer to the following steps:
Make sure ReportServerURL element in rsreportserver.config (default location: C:\Program Files\Microsoft SQL Server\MSRS10_50.MSSQLSERVER\Reporting Services\ReportServer)have value that is equal to the Web Service URL.
Add report manager and web service FQDN to IE trusted sites.
Click Tools at top right of IE, click Internet Options.
In Security tab, click Custom Level button.
Scroll down to the end of the list, and select "Automatic logon with current user and password”.
Access the report server with FQDN instead of localhost, E.g.
http://servername/Reports.
For more information about the error message, please refer to the following KB:
http://support.microsoft.com/kb/253667
If you have any more questions, please feel free to ask.
Thanks,
Wendy Fu
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