Configuring Reporting Service Add-in for sharepoint - HTTP status 401: Unauthorized.

I have the following setup
Machine 1
WSS 3.0
Installed Reporting Service Add-in
Machine 2
Reporting Service
Sharepoint Object Model
SQL Server
Sharepoint and Report Server DB
I have congigured Reporting Service for Sharepoint Integrated Mode adn Created new Reprot Server DB
Sahre Point Integration is Green and verified link
In Sharepoint Central Administration
Manage Reporting Service Integratio i have selected the URL and "Trusted Account" as my web applications use "Windows Integration - NTLM".
All services, DB access everything running under one domain user account.
I am logged into sharepoint with same account. When clieck on set server defaults i get following error
An unexpected error occurred while connecting to the report server. Verify that the report server is available and configured for SharePoint integrated mode. --> Server was unable to process request. ---> The request failed with HTTP status 401: Unauthorized.
Same error when i try to add a report to a sharepoint webapplication
The domain account is part of "Farm Administration", "site colletion administrato" and local administrator also on both servers.
Can someone let me know how to fix this.

jpmartop,
were you able to get this to work?
We have a 4 server topolgy.
moss
wfe
sql
ssrs
and are using Kerberos.
I've installed the wfe on the ssrs and am using a domain user for services, web and pools.
I get all green dots in the ssrs config.
in Central Admin, Grant access seems to work with the domain user, but set defaults gives me:
HTTP status 401: Unauthorized.
What should my web security on the default web site and reports and reports server look like? Integrated Security
Should the SSRS WFE entry in MOSS have Web application service turned on?
I've checked that my SPNs are good.I've installed sql server sp2 and a did windows update on all servers..
Could it be the user I log into the Central Admin with.. it's got server administrator and Farm administrator?
Thanks for any help or information.

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Hello,
Did you download the SQL Server 2012 Express with Advanced Services edition from the Microsoft website? If so, this edition did not support SharePoint Integration mode.
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Environment: Windows Server 2008R2, SQL Server 2012, SharePoint 2013 Enterprise
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Hi Gouranga,
According to your description, when you install the SQL Server 2012 Reporting Services Add-in for SharePoint 2013, you find the files are installed into the folder for sharepoint 2010(..../14). Right?
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Reference:
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Install or Uninstall the Reporting Services Add-in for SharePoint
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Hi, We are building company site with Sharepoint 2013 Enterprise Edition and were wondering what is the difference between Reporting Services Sharepoint Mode and Reporting Services Add In for Sharepoint 2013? What are the roles/purposes of each one? What
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Reporting Services in SharePoint mode is a service for displaying, managing, and creating SSRS reports within SharePoint. The addin is a pre-req for SharePoint that is used to display reports and is required for Reporting Services in Native or SharePoint
mode, but does not by itself do anything.
Trevor Seward
Follow or contact me at...
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This post is my own opinion and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.

Reporting Services Add-In for SharePoint Products

Hi,
Can I use the SSRS Web part installed by the add-in to see local mode reports just by instaling the add-in or do I also need to install the "Reporting Services - Sharepoint" on SS Shared Features setup wizard?
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DD

Hi,
Per the MSDN article: To use the Web Part, you must have installed and configured the Reporting Services Add-in and configured the report server for SharePoint integration.
You must also have reports to display in the viewer. You can only open reports that are in a library, a library folder, report history, or a link from a Library Web Part to a Report Viewer Web Part.
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More reference:
http://msdn.microsoft.com/en-IN/library/ms159772.aspx
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http://social.technet.microsoft.com/Forums/sqlserver/en-US/home?forum=sqlreportingservices
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Thank you for your understanding and support.
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Jason Guo
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PowerView - Can't install reporting services add-in for sharepoint

hey,
i'm trying to install PowerView on our existing sharepoint server.
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http://msdn.microsoft.com/en-us/library/hh231687%28v=sql.110%29.aspx
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http://msdn.microsoft.com/en-us/library/aa905871%28SQL.110%29.aspx
and the error that i'm facing is -->
SSRSCustomActionError: Could not load file or assembly 'Microsoft.ReportingServices.SharePoint.Common, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The system cannot find the file specified.
i've checked in windows\assembly folder and the Microsoft.ReportingServices.SharePoint.Common version is 11.0.0.0
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Hello.
After having the same issue like you in a recently installed SahrePoint 2013 SP1 farm, and using the information I found in http://msdn.microsoft.com/en-us/library/aa905871%28v=sql.110%29.aspx, I traced with the tool procmon the operation, and finally solved
the problem after discovering a little bug.
These were the steps I performed:
1.- I installed "Microsoft SQL Server 2012 RS Add-in for SharePoint" with the command
Msiexec.exe /i rsSharePoint.msi SKIPCA=1
2.- I executed PROCMON ...creating a filter of include the Process Name "rsCustomAction.exe"
3.- I executed a elevated Command Prompt, and going to %temp% folder (in my case C:\Users\%username%\AppData\Local\Temp), executed rsCustomAction.exe /i
4.- After execute this command I obtained in the Command Prompt the error:
C:\INSTALL\RS>rsCustomAction.exe /i
2014-09-29 08:59:20: User: sharepoint-farm
2014-09-29 08:59:20: Installing Report Server feature.
2014-09-29 08:59:23: Calling copyappbincontents command.
2014-09-29 08:59:23: Install error: The system cannot find the file specified
2014-09-29 08:59:24: Error details: System.ComponentModel.Win32Exception (0x80004005): The system cannot find the file specified
   at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo)
   at System.Diagnostics.Process.Start(ProcessStartInfo startInfo)
   at RSCustomAction.BaseProcessLaunch.LaunchCommand(String fileName, String arguments, Boolean ignoreExitCode)
   at RSCustomAction.PsconfigCommands.CopyAppBinContents()
   at RSCustomAction.RSFeatureSetup.Install(Boolean repair, Int32 addRetries)
2014-09-29 08:59:24: Uninstalling Report Server feature.
2014-09-29 08:59:24: Stopping W3SVC service.
2014-09-29 08:59:26: Removing Report Server web application files
2014-09-29 08:59:26: Removed file C:\inetpub\wwwroot\wss\VirtualDirectories\80\App_GlobalResources\ReportServer.resx.
2014-09-29 08:59:26: Removed file C:\inetpub\wwwroot\wss\VirtualDirectories\22816\App_GlobalResources\ReportServer.resx.
2014-09-29 08:59:26: Removing Report Server web.config modifications
2014-09-29 08:59:26: web.config file located at C:\inetpub\wwwroot\wss\VirtualDirectories\80\web.config
2014-09-29 08:59:26: web.config file located at C:\inetpub\wwwroot\wss\VirtualDirectories\22816\web.config
2014-09-29 08:59:26: Starting W3SVC service.
2014-09-29 08:59:26: SSRSCustomActionError: The system cannot find the file specified
5.- Tracing the results in PROCMON, I discovered an extrange issue: The installation was looking for the command PSCONFIG.exe but in a in a folder different than standard.
The installation was look for PSCONFIG in
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\BIN\BIN
C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\BIN\BIN
...instead C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\BIN or C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\BIN
So... the solution which worked for me was to create C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\15\BIN\BIN and place here PSCONFIG.EXE and PSCONFIG.EXE.CONFIG obtained from C:\Program Files\Common Files\Microsoft Shared\Web Server
Extensions\15\BIN
After doing it, the "Microsoft SQL Server 2012 RS Add-in for SharePoint" was installed fine as you can see en the next Command Prompt capture:
C:\INSTALL\RS>rsCustomAction.exe /i
2014-09-29 09:09:16: User: sharepoint-farm
2014-09-29 09:09:16: Installing Report Server feature.
2014-09-29 09:09:19: Calling copyappbincontents command.
2014-09-29 09:11:56: SharePoint Products Configuration Wizard version 15.0.4569.1503. Copyright (C) Microsoft Corporation 2012. All rights reserved.
Performing configuration task 1 of 3
Initializing SharePoint Products configuration...
Successfully initialized the SharePoint Products configuration.
Performing configuration task 2 of 3
Installing the application content files...
Installing the SharePoint Central Administration Web Application content files...
Installing the SharePoint Web Application content files...
Successfully installed the application content files.
Performing configuration task 3 of 3
Finalizing the SharePoint Products configuration...
Successfully completed the SharePoint Products configuration.
Total number of configuration settings run: 3
Total number of successful configuration settings: 3
Total number of unsuccessful configuration settings: 0
Successfully stopped the configuration of SharePoint Products.
Configuration of the SharePoint Products has succeeded.
2014-09-29 09:11:56:
2014-09-29 09:11:56: copyappbincontents command completed successfully.
2014-09-29 09:12:17: Adding ReportServer feature to farm.
2014-09-29 09:12:18: Installed ReportServer feature.
2014-09-29 09:12:38: Adding ReportServerStapling feature to farm.
2014-09-29 09:12:38: Installed ReportServerStapling feature.
2014-09-29 09:12:58: Adding ReportServerItemSync feature to farm.
2014-09-29 09:12:58: Installed ReportServerItemSync feature.
2014-09-29 09:13:18: Adding ReportServerCentralAdmin feature to farm.
2014-09-29 09:13:21: Installed ReportServerCentralAdmin feature.
2014-09-29 09:13:21: Activating Report Server feature to root level site collections.
2014-09-29 09:13:21: Activating feature in web app 'dev-apps.eg.local - 80'
2014-09-29 09:13:31: Activating feature to root site collection: http://dev-apps.eg.local
2014-09-29 09:13:31: Feature already activated in site collection http://dev-apps.eg.local
2014-09-29 09:13:31: Activating Report Server feature in all admin site collections.
2014-09-29 09:13:31: Activating feature in web app 'SharePoint Central Administration v4'
2014-09-29 09:13:31: Activating feature to root site collection: http://egdevsps-ap1:10000
2014-09-29 09:13:42: Activated feature for root site collection: http://egdevsps-ap1:10000
2014-09-29 09:13:42: Activating feature to root site collection: http://egdevsps-ap1:10000/sites/Help
2014-09-29 09:13:42: Activated feature for root site collection: http://egdevsps-ap1:10000/sites/Help
2014-09-29 09:13:42: Activating Report Server Central Admin feature in root-level admin site collections.
2014-09-29 09:13:42: Activating feature in web app 'SharePoint Central Administration v4'
2014-09-29 09:13:42: Activating feature to root site collection: http://egdevsps-ap1:10000
2014-09-29 09:13:42: Feature already activated in site collection http://egdevsps-ap1:10000
2014-09-29 09:13:42: Calling InstallHelp command.
2014-09-29 09:15:26: SharePoint Products Configuration Wizard version 15.0.4569.1503. Copyright (C) Microsoft Corporation 2012. All rights reserved.
Performing configuration task 1 of 3
Initializing SharePoint Products configuration...
Successfully initialized the SharePoint Products configuration.
Performing configuration task 2 of 3
Installing help collections...
Successfully installed help collections.
Performing configuration task 3 of 3
Finalizing the SharePoint Products configuration...
Successfully completed the SharePoint Products configuration.
Total number of configuration settings run: 3
Total number of successful configuration settings: 3
Total number of unsuccessful configuration settings: 0
Successfully stopped the configuration of SharePoint Products.
Configuration of the SharePoint Products has succeeded.
2014-09-29 09:15:26:
2014-09-29 09:15:26: InstallHelp command completed successfully.
2014-09-29 09:15:26: Stopping W3SVC service.
2014-09-29 09:15:29: Starting W3SVC service.
The command completed successfully
Maybe this is a bug, or maybe a result of failed installation of PowerPivot, but the true is: for me that was the solution
Regards.

SQL Server Reporting Service 2008 R2 - The request failed with HTTP status 401: Unauthorized.

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Below is a great article that has delivered many solutions to fix the issue you met:
http://odetocode.com/articles/216.aspx
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http://blogs.msdn.com/b/knowledgecast/archive/2007/01/31/the-double-hop-problem.aspx
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Thanks,
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Jin Chen - MSFT
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I have 3 reporting server instance on the SQL box. So the Web Service URL is like
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http://Server:80/VirtualDirectoryTest and
http://Server:80/VirtualDirectoryStaging .
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I tried
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and
Setspn -a http/aerver:80 domain\account.
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Hi,
As this question is more relate to Exchange development, I suggest you post it to the corresponding forum, you will get more help and confirmed answers from there.
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I referred this link:
http://social.msdn.microsoft.com/Forums/en-US/sharepointdevelopment/thread/21867e28-75d5-42c8-850b-bfb5c5894eed .
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Give permissions to the user on the web application.
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http://www.codeproject.com/Articles/24244/Access-a-Forms-Based-SharePoint-Site-s-Web-Service
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Hello,
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know that the user signed in has permissions since from the same staging server the Report Manager and Reports can both be accessed and viewed. However, it's only when we run the application and attempt to execute a report on the remote SSRS server that
we get the following error:
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methodName, Object[] parameters) at AMC.AssetTracker.Reporting.ReportExecution.ReportExecutionService.LoadReport(String Report, String HistoryID) at AMC.AssetTracker.Reporting.Report.GetReportByteArray() at AMC.AssetTracker.Reporting.Report.get_ReportStream()
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It sounds like Kerberos authentication is needed in your situation since it's not on the same box.
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For more info please see the link below:
http://social.msdn.microsoft.com/Forums/en-US/sqlreportingservices/thread/452e9627-cd8e-4709-bdd0-fbafcf9fd719
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The request failed with HTTP status 401: Unauthorized.
at Microsoft.SqlServer.ReportingServices2005.Execution.RSExecutionConnection.GetSecureMethods()
at Microsoft.SqlServer.ReportingServices2005.Execution.RSExecutionConnection.IsSecureMethod(String methodname)
at Microsoft.SqlServer.ReportingServices2005.Execution.RSExecutionConnection.LoadReport(String Report, String HistoryID)
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at Microsoft.Reporting.WinForms.ServerReport.SetParameters(IEnumerable`1 parameters)
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Hi willjohn520,
Based on your description, it seems that you are getting the error when you connect to report server reports in workstation. If in this scenario, the issue can be caused by “Host Header”(<foo>) in a URL that looks like http(s)://<foo>/reports
is neither the machine name nor the loop back IP address nor the machine's IP address.
For more details information about this issue, please refer to the following blog:
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Hope this helps.
Thanks,
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Error when accessing BHOLD Self Service (HTTP status 401: Unauthorized)

Hi,
I have started looking at the BHOLD suite and installed it on a server running FIM2010R2. The installation of the BHOLD suite seemed to be completed without problems and the BHOLD service are up and running under the B1User account and all BHOLD
products can be started with my Administrator user.
However when I click on the link "BHOLD Self Service" in the FIM portal, the silverlight plugin starts and after a short while shows the following error message:
"UserViewModel.GetAuthenticatedUserCompleted 'http://IMCDBS301A:5151/BHOLD/RoleExchangePoint/BHOLDRoleExchangePoint.svc'
System.Net.WebException: [HttpWebRequest_WebException_RemoteServer]
Arguments: NotFound
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See
http://go.microsoft.com/fwlink/?linkid=106663&Version=4.1.10329.0&File=System.Windows.dll&Key=HttpWebRequest_WebException_RemoteServer ---> System.Net.WebException: [HttpWebRequest_WebException_RemoteServer]
Arguments: NotFound
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See
http://go.microsoft.com/fwlink/?linkid=106663&Version=4.1.10329.0&File=System.Windows.dll&Key=HttpWebRequest_WebException_RemoteServer
   at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
   at System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClass5.<EndGetResponse>b__4(Object sendState)
   at System.Net.Browser.AsyncHelper.<>c__DisplayClass4.<BeginOnUI>b__1(Object sendState)
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   at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
   at System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result)
When I look in Application log (event log) I see:
Error in function call GetInfo fn:objectsbyattributep1:IDMDEMO\Administratorp2:3p3:25 Exception The request failed with
HTTP status 401: Unauthorized. StackTrace at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall) at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String
methodName, Object[] parameters) at BholdSvrProxy.BHOLDsvc.B1ScriptService.GetInfo(String functionName, String parameter1, String parameter2, String parameter3) in d:\_Bld\10\16\Sources\main\src\samples\BHOLD\2011 R2\Common\BholdSvrProxy\Web References\BHOLDsvc\Reference.cs:line
700 at BholdSvrProxy.BHOLDproxy.GetInfo(String fn, String p1, String p2, String p3) in d:\_Bld\10\16\Sources\main\src\samples\BHOLD\2011 R2\Common\BholdSvrProxy\BHOLDproxy.cs:line 115
Note that IDMDEMO\Administrator is my FIM and Domain administrator that I use in the portal.
I have ensured that the webhome containing 'http://IMCDBS301A:5151/BHOLD/RoleExchangePoint/BHOLDRoleExchangePoint.svc' has windows authentication enabled and that the user B1User is member of the BHOLDApplicationGroup and ISS_IUSRS groups.
I would really appreciate if someone is able to point me in the right direction so I get the BHOLD Self Service working.
thanks and best regards
Søren Aamand

Could it be that the spn of the servername is already registered by the service account of FIM? A workaround that worked in the past was to
remove the spn from the fim service account and adding it to the b1user service account.
I've also seen it happening that the IPv6 hostname was different from the IPv4 hostname which causes the
HTTP status 401: Unauthorized issue.
I hope this helps.
Regards,
Remy
Remy de Vries - BHOLD Expert - Technical Consultant - Elephant Security

"The request failed with HTTP status 401: Unauthorized"

Hi,
I'm trying to get both RSS feeds and SSRS reports on a web application which is having NTLM authentication without Kerberos. The catch is proxy setting, if I give <proxy autoDetect="false" /> in web.config of my sharepoint web
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The request failed with HTTP status 401: Unauthorized.
Description:
An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Net.WebException: The request failed with HTTP status 401: Unauthorized.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[WebException: The request failed with HTTP status 401: Unauthorized.]
System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall) +412862
System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters) +300
Microsoft.SqlServer.ReportingServices2005.Execution.ReportExecutionService.ListRenderingExtensions() +53
Microsoft.SqlServer.ReportingServices2005.Execution.RSExecutionConnection.ListRenderingExtensions() +207
Microsoft.Reporting.WebForms.ServerReport.ListRenderingExtensions() +130
Microsoft.ReportingServices.SharePoint.UI.WebParts.ActionMenu.OnPreRender(EventArgs e) +180
System.Web.UI.Control.PreRenderRecursiveInternal() +108
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Control.PreRenderRecursiveInternal() +224
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3394
I tried to work around this by adding proxy settings with bypass list.
<system.net>
    <defaultProxy useDefaultCredentials="true">
      <proxy proxyaddress="http://<proxy IP address>:<port>" bypassonlocal="true" usesystemdefault="true" />
      <bypasslist>
  <add address="<my report server>" />
  <add address="http://<report server>:8080/reportserver/" />
  <add address="<IP of my report server>" />
      </bypasslist>
    </defaultProxy>
</system.net>
This makes RSS feed to work but SSRS throw the above error. I would need some advice from Microsoft on how to fix this.
Note: My sharepoint site cannot be anonymous. I have just once service account that runs sql server service, report service, sharepoint services etc. This account is local admin on all servers, has highest access on sql box, run SSRS web service and app
pools, etc.
I have four servers, 2 WFE in windows load balanced, 1 app server (running Central admin and report service in sharepoint integrated mode), 1 db server hosting all content and config dbs and report server db.
Regards,
Manoj
Version Information: Microsoft .NET Framework Version:2.0.50727.3615; ASP.NET Version:2.0.50727.3618

Hi,
Thanks to share your post.
For the issue,
do you mean that the error happen with the use of NTLM authentication without Kerberos? If yes, the possible cause should be the lacking of Kerberos.
My suggestion is to implement the Kerberos authentication in your environment. You may check it and test it. For the detailed steps of implementing of the Kerberos:
http://blogs.msdn.com/b/martinkearn/archive/2007/04/23/configuring-kerberos-for-sharepoint-2007-part-1-base-configuration-for-sharepoint.aspx.
http://blogs.msdn.com/b/james_world/archive/2007/08/20/essential-guide-to-kerberos-in-sharepoint.aspx.
Hope this could help you!
Leo

Problems connecting to SSRS using IReportServerCredentials, the request failed with http status 401: unauthorized

We have a hosted SSRS server and we access it's reports using the reportviewer in an ASP.net application.
We are getting the error: The request failed with HTTP status 401: Unauthorized. When trying to run one of the reports. I have confirmed that the login details work when logging into the report manager page directly.
I have implemented an instance of IReportServerCredentials in a separate class (below) and I call it from the page before it tries to access the report. I'm not sure if this is all I need but can't seem to find any other info.
I have managed to gain access connecting to the external server from my PC and accessed the report, but when I promote the code to production and run it from there on my local PC I get the unauthorized message again: the request failed with http status
401: unauthorized
The class:
[Serializable]
public sealed class MyReportServerCredentials :
IReportServerCredentials
public WindowsIdentity ImpersonationUser
get
// Use the default Windows user. Credentials will be
// provided by the NetworkCredentials property.
return null;
public ICredentials NetworkCredentials
get
// Read the user information from the Web.config file.
// By reading the information on demand instead of
// storing it, the credentials will not be stored in
// session, reducing the vulnerable surface area to the
// Web.config file, which can be secured with an ACL.
// User name
string userName =
ConfigurationManager.AppSettings
["MyReportViewerUser"];
if (string.IsNullOrEmpty(userName))
throw new Exception(
"Missing user name from web.config file");
// Password
string password =
ConfigurationManager.AppSettings
["MyReportViewerPassword"];
if (string.IsNullOrEmpty(password))
throw new Exception(
"Missing password from web.config file");
// Domain
string domain =
ConfigurationManager.AppSettings
["MyReportViewerDomain"];
return new NetworkCredential(userName, password);
public bool GetFormsCredentials(out Cookie authCookie,
out string userName, out string password,
out string authority)
authCookie = null;
userName = null;
password = null;
authority = null;
// Not using form credentials
return false;
The call to the class, just before the report is run:
if (GetConnection.GetConnectionString().ToString().Contains("IP of external server removed"))
invoiceviewer.ServerReport.ReportServerCredentials = new MyReportServerCredentials();
We have tried so many things here, we don't even care whether the server authenticates or not but it appears to be as standard. Our hosting company has also drawn a blank and changed so many settings to no ava

Hi Nasa1999,
According to your description, you are getting the error: The request failed with HTTP status 401: Unauthorized when you access the report using the ReportViewer in an ASP.net application.
Regarding the 401 error, it could cause by the Service Principal Name(SPN) for the account the Reporting Services is running under hasn’t been registered when the Reporting Services is configured to use Kerberos authentication. So in your scenario,
please check if you are using Kerberos authentication. If that is a case, please make sure SPN is configured correctly. For more information, please refer to the similar thread:
The request failed with HTTP status 401: Unauthorized. in SSRS.
If issue persists, please check the Reporting Service error log (default location: %programfiles%\Microsoft SQL Server\<SQL Server Instance>\Reporting Services\LogFiles) around the time that the error message thrown out.
If you have any question, please feel free to ask.
Best regards,
Qiuyun Yu
Qiuyun Yu
TechNet Community Support

Configuring Reporting Service Add-in for sharepoint - HTTP status 401: Unauthorized.

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