Source url returned error: 401

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  1. Roy Adams
    Roy Adams avatar
    1 posts
    Member since:
    Mar 2010

    Posted 25 Apr 2011 Link to this post


    I have ASP.NET application running on Intranet.
    Lately, I started receiving the following errror:

    "RadUpload Ajax callback error. Source urk returned error: 401


    Did you register the RadUploadProgressHandler in web.config?

    Please, see the help for more details: RadUpload for ASP.NET Ajax - Configuration - RadUPloadProgressHandler"

    Any idea ?

    Your support is very much appreciated!


  2. Peter Filipov
    Peter Filipov avatar
    1028 posts

    Posted 28 Apr 2011 Link to this post

    Hi Roy Adams,

    In order to use RadProgressArea, you need to add RadProgressManager (as long as RadProgressArea) to your page and must register RadUploadProgressHandler and RadUploadHttpModule in your application web.config file. Please check your web.config file for them. In case that you are using IIS7 you need to register them into <system.webServer> section. For more details please consult with the following help article.

    All the best,
    Peter Filipov
    the Telerik team

    Browse the vast support resources we have to jump start your development with RadControls for ASP.NET AJAX. See how to integrate our AJAX controls seamlessly in SharePoint 2007/2010 visiting our common SharePoint portal.

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