401 - Unauthorized

[Gijo]

I have an issue with IIS 7.5. Any web page with Telerik controls pops up a windows authentication login box and it fails to authenticate and results in error '401 - Unauthorized.  Access is denied due to invalid credentials'. All other pages without Telerik controls works fine. It looks like using Host Name for the website in IIS  is creating the problem.

Environment:
Telerik        :  RadControls for ASP.Net JAAX Q2 2011 SP1
OS Version : Windows 2008  R2 
OS Version :  64bit
IIS Version  ; IIS 7.5
.Net Framework : 4.0
Authentication : Windows Integrated
App pool(mode) : Integrated
HostName : xxxxx-stg.xxx.com


Below is the web.config section

<system.web>
     <httpHandlers>
           <add path="Telerik.Web.UI.WebResource.axd" type="Telerik.Web.UI.WebResource" verb="*" validate="false" />
      </httpHandlers>
</system.web>

<system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <handlers>
      <add name="Telerik.Web.UI.WebResource"  path="Telerik.Web.UI.WebResource.axd" verb="*"
              type="Telerik.Web.UI.WebResource, Telerik.Web.UI" />
    </handlers>
</system.webServer>

Thanks in advance.

[Genady Sergeev]

Hello,

We have never heard of such problem with our controls. Cold you please give us some guidelines how we can reproduce the error? Do you use Windows authentication? looking at the hostname it looks like a  sub domain of your main site. Is the issue reproducible only on the sub domain?

Kind regards,
Genady Sergeev
the Telerik team