We had to move a website to a new server. We went from win2k iis 6 to win2k8 iis 7. Now, whenever I use the rad uploader I get a popup with this error.
Rad Upload Ajax callback error. Source url was not found:
Did you register the RadUploadProgressHandler in the web.config?
Please, see the help for more details: RadUpload for ASP.NET Ajax -
Configuration - RadUploadProgressHandler
I saw this post http://www.telerik.com/community/forums/aspnet-ajax/upload/radupload-ajax-callback-error-source-url-returned-error-500.aspx
and did what it had said but it didn't fix my problem. I have attached my web.config