RFC_ERROR_COMMUNICATION: Connect to message server at jcon connections

[Former Member]

Hi friends,

we are trying to configure JCo destinations for our WD application to connect to ECC6 system from NW04 J2EE engine. when we are trying to connect to this ECC system it is giving some strange error as below. We have checked the SLD settings like installation number, ECC system host, port number, logon group etc - and everything looks good. But still

facing the problem. Any help regarding this will be highly appreciated.

even ping also not working.

the error is

com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to message server host failed Connect_PM TYPE=B MSHOST=flag-projects GROUP=SPACE R3NAME=D50 MSSERV=sapmsD50 PCS=1 ERROR The message received isn't from a message server. Are you really connected to the message server? Please check your connection parameters. (flag-projects / sapmsD50) TIME Fri Sep 19 20:10:36 2008 RELEASE 700 COMPONENT MS (message handling interface, multithreaded) VERSION 4 RC -29 MODULE msxxi_mt.c LINE 2543 COUNTER 1

[Former Member]

Hi,

Refer [SAP Java Connector Problem Analysis Scenarios|http://help.sap.com/saphelp_erp2005/helpdata/en/f6/daea401675752ae10000000a155106/frameset.htm]

With Regards,

Laksh.

[Former Member]

Hi,

>MSSERV=sapmsD50

This looks like only the server name. Is there a fully qualified domain name for this message server? For eg. sapmsD50.<your domain>.<com|corp|org>. If yes, then try using the FQDN of the message server.

Regards,

Satyajit.

[Former Member]

iam tryed all the settings

and even entries in services file also.

and 3600 port also working proparly i can able to ping from command propt to 3600 port of the target system but fome JCO connections this( ping ) is not working when i click on test connection iam getting above error.

pls help me on this '

[Former Member]

Hi,

Try this: Adaptive RFC trouble shooting guide.

https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/d0019b1a-775f-2910-beb8-d81f27d0...

Thanks

Krishna

[Former Member]

Hi Sreekanth,

You will be get this error because of multiple reasons.

1.Particular system is not configured properly in SLD

2.System might be down while testing JCO Connections.

3.Logon group might not configured properly.

ope this will helps.

Thanks,

Naidu

[Former Member]

log on group i set it space.

i think it is not the problem with this .

and the above two are configured correctly

and instaled components i used ECC 5.0 , but we are using ECC 6.0 .iam not find this option in this list.

can u help me on ths pls.