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Editorial Team
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Asked: 2026-05-13T16:44:50+00:00

this is the first time I have tried this so I am probably missing

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this is the first time I have tried this so I am probably missing something that is staring me right in the face.

I have an ASP.NET page where the user fills in a request which then emails a PDF rendered from a ReportViewer instance.

It all works fine when I run it locally through the ASP.NET localhost but when I try and run it of the webserver it fails with the following message:

An error has occurred during report processing.
Cannot create a connection to data source ‘DataSource1’.

I can preview the report via the web based report manager via http://servername/reports which works without any problem and using the report editor in VS2005.

I suspect it is something to do with the credentials but I am at a loss. The data source is set with a username and password but this is saved within the datasource.

I have been looking at this for about a day now with no joy. If anyone can point me in the right direction I would be very grateful.

Thanks

Andy

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1 Answer

  1. Editorial Team

    Woohoo…I managed to fix the problem.

    It was the credentials after all. Even though I was specifying a username and password it was still using the webserver default credentials. I got a new user setup and it worked a treat.

    As the error message didnt mention anything to do with unauthorised access and being able to pull the data through using VS2005 and the web browser for viewing the reports I thought it was the way I was referencing the report.

    Thanks to those who had started to ponder about this.

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