Strategy users received the following message when trying to reach the Web Administration page in Strategy Web:
Access to the path 'C:\Program Files\Strategy\Web ASPx\asp\Admin.aspx' is denied.

The ASP.Net machine account is missing from the users authorized to access the admin.aspx file.
View the image below for reference:

Add the ASP.Net machine account to the users authorized to access the admin.aspx file with the permissions.
View the addition of the machine account in the image below:

Refer to the following Strategy Knowledge Base technical note for more information:
KB16537 (KB5600-8X-2723): 'The Web Server encountered an unknown runtime error' error occurs when trying to reach the Web Administration page in Strategy Web 8.x.
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