RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed Connect

[Former Member]

Hi,

Last week, we had connection problems between Portal and ECC (below). The error was only corrected when doing stop / start the Portal and ECC, but could not identify what caused the error.

I checked the services and hosts files, but I have not found any problems.

error :

com.sap.mw.jco.JCO$Exception:
(102) RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed Connect_PM TYPE=B
MSHOST=erptb706p GROUP=SPACE R3NAME=PRD MSSERV=sapmsPRD PCS=1 LOCATION CPIC
(TCP/IP) on local host with Unicode ERROR partner '127.0.0.1:sapgw00' not
reached TIME Wed Feb 13 13:57:55 2013 RELEASE 701 COMPONENT NI (network
interface) VERSION 38 RC -10 MODULE nixxi.cpp LINE 2835 DETAIL NiPConnect2
SYSTEM CALL connect ERRNO 10061 ERRNO TEXT WSAECONNREFUSED: Connection refused
COUNTER 3

Obs: The above error indicates that looking at Localhost even hosts and services being ok. Interestingly, only after stop / start working again without any adjustment

       I have information that there were problems link the day before, but was not made any changes.

Any idea what might have occurred ?

tks

Windows 2003 Server

SQL Server 2008

Enterprise Portal 7.01

ERP 6.04

[Former Member]

Do you have any idea why the dispatcher would be trying to connect the gateway on the localhost meaning 127.0.0.1? I'm assuming the ABAP gateway is not running on the same host as the portal, or is it? Have you ruled out network problems? See if SAP note 1165633 is relevant for you.

https://service.sap.com/sap/support/notes/1165633

[Former Member]

Thanks

I will check the note.