Re: Configuring Windows-based Authentication and UrlAuthorization

1) Try change the location path to "~/admin"

That didn't work. It just let's all users have access if I change it to
that. When it is set to "Admin", it does respond correctly by requiring
permission for the appropriate directory. But even authorized users are
getting prompted for credentials. And even admin credentials are being
rejected with "401 - Unauthorized: Access is denied due to invalid

2) Check if Windows authentication is enabled (if IIS really receives
your membership)

It is.