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Microsoft Dynamics CRM (Archived)

Report Viewer Configuration Error (CRM2016)

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Posted on by 50

Hello,

we have a 2 server setup for our CRM system (on premise with IFD) with one application server and one SQL server.On the SQL server isntance we have the reporting services installed and the CRM SRS running.

When we now try to open a report we get the following error:

Report Viewer Configuration Error

The Report Viewer Web Control HTTP Handler has not been registered in the application's web.config file. Add <add verb="*" path="Reserved.ReportViewerWebControl.axd" type = "Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" /> to the system.web/httpHandlers section of the web.config file, or add <add name="ReportViewerWebControlHandler" preCondition="integratedMode" verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" /> to the system.webServer/handlers section for Internet Information Services 7 or later.

We have checked all the web.config files and the entry is there (1st mentioned web control). However as we have 2 servers its totally unclear where to change it anyway. We tried both and nothing helps. One thin wenoticed is that on CRM server it has Version 11.0.0.0 in the web.config and on SQL it has 12.0.0.0. Changing this to any other in CRM does not affect the error message. Changing it on SQL server breaks the reporting services.
So we are stuck here with no idea left to get this fixed. Maybe someone has a hint or can help?

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  • Verified answer
    plissken28 Profile Picture
    50 on at

    We have found the solution to this and it is related to the web.config on the CRM Application server (the server hosting the website). There is a section http handlers and handlers. So I was assuming it should be http handlers but it must be "handlers". So adding the seconds line in that section solved the issue for us.

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