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Asked: 2026-05-14T22:39:03+00:00

I have an ASP.NET application that runs under Classic .NET AppPool. I’m trying to

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I have an ASP.NET application that runs under Classic .NET AppPool.

I’m trying to render a report hosted in Reporting Services in another machine, with the correct address and everything. But I keep getting the following error, which I just can’t solve:

Cannot create a connection to data source ‘MYDATASOURCE’. (rsErrorOpeningConnection) —> Microsoft.Reporting.WebForms.ReportServerException: Login failed for user ‘NT AUTHORITY\IUSR’.

I won’t post any code, I’m simply calling the .Render() method through Microsoft.Reporting.WebForms.

Could it be a configuration or some special permission I have to grant to my code?

Any Help?

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1 Answer

  1. Editorial Team

    Granting permission directly on the database to the user NT AUTHORITY\IUSR solved the problem. I’m not very sure about security issues doing this, but thats another question.

    Thanks.

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