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Editorial Team
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Asked: 2026-05-16T22:35:36+00:00

I get the above error when trying to run my .net app as it

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I get the above error when trying to run my .net app as it attempts to connect to a SQL database on another server.

The SQL connection string is using a trusted connection.
IIS has anonymous access switched off, and integrated windows authentication switched on.

The user the error relates to is “DOMAINNAME\IISSERVERNAME$”

Do I need to add user “DOMAINNAME\IISSERVERNAME$” as a login on the SQL server machine?
I expected my username to be passed around – i.e. if I have access to the SQL server then the application would run fine?

Thanks in advance.

EDIT: Should point out that I know it’s authenticating OK from an IIS point of view… if I switch to anonymous access it fails my own security as an “Unknown User”… which is what I’m after

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1 Answer

  1. Editorial Team

    Sorted it.

    Had to add the user DOMAINNAME\IISSERVERNAME$ as a SQL login on that server.

    As a side issue, then had to add execute permissions for that login to the schema.

    Thanks for your help.

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