The screenshot from your first post showed response 404 which means the server has not found anything matching the requested URI. On the new screenshots from your second post however, you get 504 and 500 error codes. As your project works on the local IIS, the issue is most likely related to your server IIS configuration or Virtual Directory settings. Ensure that IIS, ASP.NET and WCF are correctly installed and registered - this is noted in this MSDN article: Deploying an Internet Information Services-Hosted WCF Service
. Response status codes beginning with the digit "5" indicate cases in which the server has encountered an error or is incapable of performing the request. The server should also include an explanation of the error situation, and whether it is a temporary or permanent condition, however as server errors are not bubbled to the Silverlight client, you should check the raw response in Fiddler which would contain the actual exception. You can review the server event logs for exceptions too.
Another thing to make sure, the configuration for the Telerik Reporting WCF Service (see Hosting WCF Service in IIS
) is in the web.config file, so are you deploying the same config file that you use to test your application on your local machine?
If you're running your app on shared hosting environment, such plans usually have memory restrictions upon which they reset your application pool i.e. the report is never successfully rendered. If you're using shared hosting, contact your hosting company and ask them for memory restrictions (if not listed in your plan details).
In general, Telerik Reporting is an embedded reporting engine, which primary goal is to analyze data and represent it in a human-readable format that is also suitable for printing. During this process, certain complex layout and paging rules are applied, so the great flexibility offered by the reporting engine comes at a price: increased processing times and memory footprint. In this line of thoughts, having limited resources for your application pool is not recommended.
the Telerik team
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