Telerik.Web.UI.WebResource.axd 404 Error


When you move your DotNetNuke 7 instance from Windows Server 2012 to a new Windows Server 2012 R2 instance, you might end up with poorly rendered skin. This issue relates to a situation where the related Telerik Script Manager is not properly loaded.

Querying the affected website with Web Page Test showed, in this case, the query for Telerik.Web.UI.WebResource.axd resource resulted in a 404 HTTP error.


Searching the web resulted in a variety of proposed solutions to this issue. In this case, the solution is as follows.

The Telerik.Web.UI.WebResource.axd handler must be added to the system.webServer/handlers section of the web.config.


If the system.webServer node does not have a handlers node, add it.


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