IIS7 Windows Authentication: Pop up boxing requesting credentials, not same behavior as IIS6

Posted on 2010-09-08
Last Modified: 2012-05-10
In IIS6, we would set a site to use Windows Integrated Authentication and set the proper NTFS permissions on the site's home directory.  Users who had correct NTFS permissions could view site and no one else could.  

In IIS7, I set the same site (migrated from iis6 to iis7) to use Windows Authentication and set the correct NTFS permissions (atleast what I think is correct) and no matter who the user is, they get a pop up box asking for username/password from the browser.  When I go to the site in IIS6, I do not get prompted for credentials and get directed directly to the site (either page for valid users or a custom unauthorized access page for those without access.

What am I missing here?  Thanks!
Question by:frankrizzo1856
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LVL 51

Expert Comment

by:Ted Bouskill
ID: 33632644
I'm going to assume you are using IE.

When you connect to the website what is the security zone on the right hand side of the status bar?  'Local Intranet', Trusted Sites' or 'Internet'

If it's 'Internet' that is your problem.

Author Comment

ID: 33635700
This is an internal intranet site, so not the issue there.
LVL 51

Expert Comment

by:Ted Bouskill
ID: 33639631
Yes it is an issue.  The browser is responsible for determining how to automatically log into a web server.

When IIS is setup to use Windows Authentication it sends a response to the browser requiring Windows Credentials to log in.  The browser decides if the users current running credentials on the client should be used.

So, if the internal site is and if the "Primary Dns Suffix" in the IP connection settings is '' then IE will mark the site as "Local Intranet" and automatically sign you into the web site without showing the prompt.

If the internal site is and the "Primary Dns Suffix" in the IP connection settings is '' then you need to make * a 'Trusted Site' and set the feature "Automatically Login using Windows Credentials" then the user will be logged in automatically.

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Author Comment

ID: 33639691
It is a trusted site and the same site in IIS6 with the same exact URL and domain works as expected from the same browser/workstation.  This is why I am saying it is not a browser issue.
LVL 51

Expert Comment

by:Ted Bouskill
ID: 33640111
I'm sorry but this is always a browser issue even though it might not seem that way.

For example in Firefox you can set automatic log in using a different strategy but Opera will always prompt when a new session is started.  Safari and Chrome will always prompt once and you can save the credentials.

I manage a lot of IIS servers with both IIS 6 and IIS 7 in an intranet with 23 different domains and too many websites to count.  Every single time it turns out to be a browser/client issue.

Sometimes it's a registry issue that has to be fixed with Group Policy.

Can you confirm you have the 'Automatically login using Windows Credentials' set in IE for the 'Trusted Sites'?

Author Comment

ID: 33650786
Yes, "automatic login" is set in IE settings.  
LVL 51

Expert Comment

by:Ted Bouskill
ID: 33828567
I'd double check your settings.  If you followed the recommendations this shouldn't be happening.

Accepted Solution

frankrizzo1856 earned 0 total points
ID: 34852059
We ended up rebuilding the server to resolve the issue.

Author Closing Comment

ID: 34886319
We rebuilt server to resolve.

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