Navision database error 1237

I am using Navision Replicator trying to replicate data from one employee table to another from different databases. But whenever i tried connecting to one of my systems using the replicator setup i always have this error
"$RCSfile: replicat.cpp,v $ $Revision: 1.117 $ $Date: 2006/11/06 22:19:55 $ D:\p\src\repcom…\replicat\replicat.cpp 2479 Mon Mar 26 10:46:25 2007
10: Navision error in ConnectServerAndOpenDatabase - drv=NDBCN,server=sshfc-fms,nettype=tcp,database=,user=jj

The combination of user ID and password entered is invalid. Try again.
Navision Database Error: 1237."

And this username and password is the one i am using and i am sure is correct.
Can someone help me on what needs to be done to get this working…