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Asked: 2026-06-06T14:39:51+00:00

I am trying to have my ASP.net application access a UNC path, however I

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I am trying to have my ASP.net application access a UNC path, however I am getting file denied errors.

If I try this where the application is on my local machine, it works, if I run it in the browser, where the application is deployed, it works fine.

However when I try to access the website from my machine to my IIS box, which then in-turn accesses the file server, I can Access Denied errors.

I’ve checked that ASP.Net is actually impersonatinh as me, and it seems to be that seems to be the case, however still the errors.

All the files on my file server have Access to “Everyone”

Any thoughts?

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1 Answer

  1. Editorial Team

    After our Tech Services team looking into this, it appears it was partly to do with Chrome/FF not sending WinAuth correctly, and also the IIS Windows Authenication -> Providers settings were the wrong way around:

    Should be :

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