Problems with kerberos Windows XP sp2

[Miika Parvio]

Hello!

I just got work SSO authentication against AD using JAAS. But then I 
installed SP2 to my Windows XP, and nothing works anymore.

Maybe I explain, what my application did, before I updated to SP2:

1) Authenticate current user with SS0 against AD. This was done by JAAS 
and com.sun.security.auth.module.Krb5LoginModule.
2) Use current authentication information to get group information of
     authenticated user from AD. This was done by JNDI like this:

JndiAction action = new JndiAction(args);
Subject.doAs(lc.getSubject(), action);
lc is LoginContect object.

Everything worked with SP1 very well.

When I istalled SP 2, situation looks like this:
1) Authenticate current user with SSO against AD.
   -no erros, so I assume that everything wents well.
2) Use current authentication information to get group information of
     authenticated user from AD.
An exception is occurred:
javax.naming.AuthenticationException: GSSAPI [Root exception is 
javax.security.sasl.SaslException: GSS initiate failed [Caused by 
GSSException: No valid credentials provided (Mechanism level: KDC has no 
support for encryption type (14))]] GSSAPI

What should I do?

If I don't Use SSO, everything works fine. Do I need some batches to fix 
this problem or what?

Miika Parvio