Unable to authenticate

If a user attempts to authenticate to WebSEAL by using SPNEGO authentication and the authentication fails, an HTML error page is displayed and a message is added to the log.

• Ticket not yet valid
  
• Cannot acquire credentials
  
• Wrong principal in request
  
• Encryption type not permitted
  
• Key version is incorrect
  
• Cannot authenticate by using NTLM
  
• Cannot complete authentication
  

Parent topic: Single sign-on Issues: Windows Desktop single sign-on, Kerberos, and SPNEGO