When accessing a Tomcat website configured to use NTLM authentication from Windows Vista / 7, a user is prompted continually for authentication. Accessing this site would previously work seamlessly under Windows XP.
Page not displayed after entering correct network credentials.
Tomcat doesn't support (and won't support) NTLM 2.0 used in Windows Vista / 7. By default, Windows Vista and 7 use NTLM 2.0.
Set a lower NTLM Compatibilty level
Create DWORD entry LmCompatibilityLevel and set to 2
This alters the security level of the computer. Make sure you are aware of the impact of this change before making it.