Tom> Ah.  Assuming you copied only the call to the KRB4_PUT32BE macro,
Tom> and not the other parts of the cr_tkt, you may have wound up with
Tom> an inconsistent packet.  There is a flag at the beginning of the
Tom> packet that indicates what byte order it has.  If you did not
Tom> adjust the setting of this flag to match the byte order used to
Tom> encode the timestamp, the receiving server would decide
Tom> incorrectly whether to byte-swap.

That's it. Many thanks.