I have my forum installation set up using a secure (SSL) connection, to ensure that no one can see or post without being a member I enabled NT authentication. It works perfectly when I'm on the private local network. I tried it from work this morning and I can't authenticate. The login box doesn't show a domain to authenticate the login. The login's I'm using are domain logins, my login has domain admin rights, another test login I created is only a member of the forums group I created on the domain. That user group has no access to any network resources but it does have access to the forums database on SQL. Regardless of which login I use, there is no domain to authenticate the login and the login fails.
No, I'm not using netscape, my main work PC has IE4.47..., some will be using netscape and some will be connecting using a MAC with an unknown browser.