I have one WSS 3.0 site hosted on a standalone server. I have extended the site into an external zone that authenticates with Digest authentication. This has been working fine for the past year or so. We have been looking into changing the user account naming scheme for Active Directory, and have been testing the change out on my own account. In doing so, I am still able to access our Sharepoint site from the Intranet zone on our internal network, but not from the external web address. I have tried removing my account from the site collection, and even going into the WSS_Content.AllUserData SQL table and changing the account name from DOMAIN\OldUserName to DOMAIN\NewUserName. No matter what I have tried, I get "HTTP Error 401.1 - Unauthorized: Access is denied due to invalid credentials. Internet Information Services (IIS)" when I try to log in with any username. Help?

Justin, I think your problem is with the configuration with IIS and not SharePoint. To test this set up IIS on another port that isn't running SharePoint, and see if you have the same problem. If you do, you now know you need to work on your configuration of IIS and not SharePoint. Brian