We set up a Kerberos authentication system to perform single sign on for our
web server.
Kerberos MIT, mod_auth_kerb & Apache2 and AD Windows 2003.
Everything works rather fine until the following messages appear out of the blue
[Fri Dec 21 09:26:06 2007] [error] [client] gss_accept_sec_context() failed: A token was invalid (Token header is malformed or corrupt)


[Fri Dec 21 15:04:59 2007] [error] [client] gss_accept_sec_context() failed: Miscellaneous failure (Wrong principal in request)

Anyone any ideas how to make these go away ?