informix connection interrupt within 10 seconds

Hi all,

I have one problem with informix database recently.My client operation
system is Windows2003,server operation system is UNIX.The version of
Informix is 09.40.0000 FC8.I try to connect server's informix database
with WINSQL.But I have one problem that the connection interrupt
within 10 seconds.

If you have an answer for this, I'd love to hear it. If not, any
suggestions on how to troubleshoot it would be wonderful.

Thanks,

Roy

.