'I'm getting 403 – Forbidden: Access is denied on iis10 ashx files

I'm getting 403 – Forbidden: Access is denied on iis10 when trying to run ashx files.

I'm using classic application pool with identity localSystem

can you please help?



Solution 1:[1]

I would suggest you check the IIS logs, check the FRT logs, and Check the detailed error message. You could go to IIS -> Error pages-> Edit features settings-> Select Detailed errors option and click OK For testing purposes, try to give full permission to the site folder.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Deepak-MSFT