JCO Connection problem with EP 6.0 SP9 and ERP 2004

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Hello,

I am working on setting up ESS/MSS on EP6.0 SP9 connecting to ERP2004. I have configured the JCO Connection in visual administrator, defined SLD settings for WebAS ABAP server pointing to ERP2004 instance, and configured the RFC destination, Logon Group and SLD setting on the ERP2004 instance. I have also set up the SAP gateway and SAP message server entries in the services file on the portal server.

I cannot successfully test the Jco connections I have defined as described in the MSS manual.

I am unable to ping the Jco destination (although I can ping the R/3 server directly from the command line.) When I try to test the Jco COnnection, I ge the following error message:

Error> occured >Tue Jun 07 14:52:49,115<

RfcException:

message: Connect to message server host failed

Connect_PM TYPE=B MSHOST=htadevn GROUP=PUBLIC R3NAME=NST MSSERV=sapmsNST PCS=1

ERROR partner not reached (host htadevn, service sapmsNST)

TIME Tue Jun 07 14:52:49 2005

RELEASE 640

COMPONENT NI (network interface)

VERSION 37

RC -10

MODULE nixxi_r.cpp

LINE 8579

DETAIL NiPConnect2

SYSTEM CALL SiPeekPendConn

ERRNO 10061

ERRNO TEXT WSAECONNREFUSED: Connection refused

COUNTER 2

Return code: RFC_FAILURE(1)

error group: 102

key: RFC_ERROR_COMMUNICATION

Any suggestions on what is causing the connection failure? Are here other logs I can look at besides the jrfc.trc file? When I go to SM59 and test the RFC connection, the test succeeds from R3 - > portal. The failure sems to only exist going from portal -> R/3.

Thanks,

-Matt