We have setup a test SharePoint environment on a single box. If we create a new classic authentication web application using NTLM the site works fine, and recognizes AD users correctly. Users can then login successfully. If we create a new claims based authentication
web application using NTLM all users receive an Access Denied error when trying to view the site. The application will recognize AD users when applying permissions in Central Admin's User Policy section, but none of those users are able to access the site.
If I turn on Fiddler Capture, the sites will work fine. Once I turn it off the sites no longer work and we are again presented with an Access Denied exception (or sometimes 403 Forbidden in Firefox and Chrome). I know that Fiddler create a local proxy so
I'm curious what that proxy is doing that allows claims based to work correctly.
Has anyone seen this before? Does this sound Firewall/Antivirus related? Client or server?
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