Read Dictionary Meta Data with a Single Server Connection

Hello,
I've Enterprise Portal 6.0 SP4 NetWeaver Stack 2 Developer Workplace Sneak Preview from https://www.sdn.sap.com/sdn/downloads.sdn running on my computer and implemented the Tutorial: "Creating A Web Dynpro Application Accessing ABAP Functions" from https://www.sdn.sap.com/sdn/developerareas/webdynpro.sdn?page=TutWD4_AccessingABAP.htm.
During the setup of the JCo Conneciton for the WD_FLIGHTLIST_RFC_METADATA_DEST in the Web Dynpro Content Administrator in Step 3 I came across the problem that I can not use a Single Server Connection to read Dictionary Meta data.
So my Question: Why is it not possible to read Dictionary Meta Data with a Single Server Connection?
Regards
Gregor

Hi Ruth,
Thanks for the guideline.
I entered an entry in the etc/service file on the m/c which is having SAP WAS 6.40 J2ee installed.(let say ip address 172.16.1.38)
for e.g.
sapmsSA1 3600/tcp
I restated the webAS server.
Then from SAP GUI when i am connecting to SAP R/3 backend system and checking the 'smlg' transaction.....i can see 3 Logon groups with the same name 'PUBLIC'.
Now i have created the BC Message server connection in SLD with this information.
caption - SA1 01
Message server IP = 172.16.1.242
port 3600
After that i specified this message server information to WD_MetaData connection in JCO content administrator.
When i tetsed this connection it gives me error as follow.
com.sap.mw.jco.JCO$Exception:(102) RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed
connect_PM TYPE=B MSHOST=172.16.1.242 GROUP=PUBLIC R3NAME = SA1 MSSERV=sapmsSA1 PCS=1 LOCATION CPIC(TCP/IP)on localhost with Unicode ERROR partner not reached(host 172.16.1.38,service sapgwoo)
connection refused
can u guide me what i am missing?
Thanks,
Mital.

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