sendauth problem

[Arturo Sandrigo]

Hi,
sorry for the cross posting, but i'm short on time with my thesys project
and
need to solve this problem.
I have a problem with sendauth, when i issue the command from a windows
client (KfW 3.2.2) i get -1765328178 error, checking with wireshark sendauth

doesn't send the credential at all but it close the connection almost
immediately (strace shows a ECONNRESET).
I think i set up the connection option well, but since i'm new in kerberos
programming could be that i made some mistake.
Can any help me solve this problem or give me some hints on what to check
to solve it ?
Thanks!
 Arturo Sandrigo