TS3960 Unable to connect to Lion Server with Server App or Server Admin

I'm running 10.7.4 on my Mac Mini and my iMac.  I administer my Mac Mini server from my iMac.  I am unable to connect using fully qualified domain name. Even after checking the items in this article. 
I am able to connect if I use the internal network ip address or the servername.local name.
Has anyone had this problem and what was done to fix it.  Thanks

The certificate verification warning isn't supposed to come up if:
- you connect through to a connection that isn't supposed to be encrypted, or
- you have a valid certificate set up that has been issued by an official certificate authority.
I have noticed that when I try to connect using the internal ip address I don't  see the certificate verification warning come up.
Could I have a bad certificate that is not popping up for verification?
Since you are administering the server from the same subnet behind a firewall, I guess there's no need for an encrypted connection
Did you enter your server's IP as an additional DNS server in your client's network preferences?

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    This is caused by either a) erroneous server settings, b) the backend system has been shutdown, c) network problems. Will try next .
    Could not start server: Connect to SAP gateway failed
    Connect parameters: TPNAME=FLRFCSRV GWHOST=sapd2srv GWSERV=sapgw01
    ERROR       partner '10.165.67.157:sapgw01' not reached
    TIME        Thu Apr 29 09:16:12 2010
    RELEASE     720
    COMPONENT   NI (network interface)
    VERSION     40
    RC          -10
    MODULE      nixxi.cpp
    LINE        3253
    DETAIL      NiPConnect2: 10.165.67.157:3300
    SYSTEM CALL connect
    ERRNO       239
    ERRNO TEXT  Connection refused
    COUNTER     2
            at com.sap.conn.jco.rt.DefaultServer.openConnection(DefaultServer.java:1168)
            at com.sap.conn.jco.rt.DefaultServer.openConnections(DefaultServer.java:1057)
            at com.sap.conn.jco.rt.DefaultServer.adjustConnectionCount(DefaultServer.java:1004)
            at com.sap.conn.jco.rt.DefaultServerManager$DispatcherWorker.run(DefaultServerManager.java:299)
            at java.lang.Thread.run(Thread.java:619)
    Caused by: com.sap.conn.jco.JCoException: (129) JCO_ERROR_SERVER_STARTUP: Could not start server: Connect to SAP gateway failed
    Connect parameters: TPNAME=FLRFCSRV GWHOST=sapd2srv GWSERV=sapgw01
    ERROR       partner '10.165.67.157:sapgw01' not reached
    TIME        Thu Apr 29 09:16:12 2010
    RELEASE     720
    COMPONENT   NI (network interface)
    VERSION     40
    RC          -10
    MODULE      nixxi.cpp
    LINE        3253
    DETAIL      NiPConnect2: 10.165.67.157:3300
    SYSTEM CALL connect
    ERRNO       239
    ERRNO TEXT  Connection refused
    COUNTER     2
            at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcServer.accept(MiddlewareJavaRfc.java:2135)
            at com.sap.conn.jco.rt.ServerConnection.accept(ServerConnection.java:380)
            at com.sap.conn.jco.rt.DefaultServer.openConnection(DefaultServer.java:1149)
            ... 4 more
    Caused by: RfcException: [null]
        message: Connect to SAP gateway failed
    Connect parameters: TPNAME=FLRFCSRV GWHOST=sapd2srv GWSERV=sapgw01
    ERROR       partner '10.165.67.157:sapgw01' not reached
    TIME        Thu Apr 29 09:16:12 2010
    RELEASE     720
    COMPONENT   NI (network interface)
    VERSION     40
    RC          -10
    MODULE      nixxi.cpp
    LINE        3253
    DETAIL      NiPConnect2: 10.165.67.157:3300
    SYSTEM CALL connect
    ERRNO       239
    ERRNO TEXT  Connection refused
    COUNTER     2
        Return code: RFC_FAILURE(1)
        error group: 102
        key: RFC_ERROR_COMMUNICATION
            at com.sap.conn.rfc.engine.RfcIoControl.error_end(RfcIoControl.java:255)
            at com.sap.conn.rfc.engine.RfcIoControl.ab_rfcaccept(RfcIoControl.java:43)
            at com.sap.conn.rfc.api.RfcApi.RfcAccept(RfcApi.java:41)
            at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcServer.accept(MiddlewareJavaRfc.java:2121)
            ... 6 more
    A startup error occurred - please view the log file for additional information
    >>> Exception error occurred on FLRFCSRV connection null
    com.sap.conn.jco.JCoException: (129) JCO_ERROR_SERVER_STARTUP: Server startup failed at Thu Apr 29 09:16:18 CDT 2010.
    This is caused by either a) erroneous server settings, b) the backend system has been shutdown, c) network problems. Will try next .
    Could not start server: Connect to SAP gateway failed
    Connect parameters: TPNAME=FLRFCSRV GWHOST=sapd2srv GWSERV=sapgw01
    ERROR       partner '10.165.67.157:sapgw01' not reached
    TIME        Thu Apr 29 09:16:18 2010
    RELEASE     720
    COMPONENT   NI (network interface)
    VERSION     40
    RC          -10
    MODULE      nixxi.cpp
    LINE        3253
    DETAIL      NiPConnect2: 10.165.67.157:3300
    SYSTEM CALL connect
    ERRNO       239
    ERRNO TEXT  Connection refused
    COUNTER     3
            at com.sap.conn.jco.rt.DefaultServer.openConnection(DefaultServer.java:1168)
            at com.sap.conn.jco.rt.DefaultServer.openConnections(DefaultServer.java:1057)
            at com.sap.conn.jco.rt.DefaultServer.adjustConnectionCount(DefaultServer.java:1004)
            at com.sap.conn.jco.rt.DefaultServerManager$DispatcherWorker.run(DefaultServerManager.java:299)
            at java.lang.Thread.run(Thread.java:619)
    Caused by: com.sap.conn.jco.JCoException: (129) JCO_ERROR_SERVER_STARTUP: Could not start server: Connect to SAP gateway failed
    Connect parameters: TPNAME=FLRFCSRV GWHOST=sapd2srv GWSERV=sapgw01
    ERROR       partner '10.165.67.157:sapgw01' not reached
    TIME        Thu Apr 29 09:16:18 2010
    RELEASE     720
    COMPONENT   NI (network interface)
    VERSION     40
    RC          -10
    MODULE      nixxi.cpp
    LINE        3253
    DETAIL      NiPConnect2: 10.165.67.157:3300
    SYSTEM CALL connect
    ERRNO       239
    ERRNO TEXT  Connection refused
    COUNTER     3
            at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcServer.accept(MiddlewareJavaRfc.java:2135)
            at com.sap.conn.jco.rt.ServerConnection.accept(ServerConnection.java:380)
            at com.sap.conn.jco.rt.DefaultServer.openConnection(DefaultServer.java:1149)
            ... 4 more
    Caused by: RfcException: [null]
        message: Connect to SAP gateway failed
    Connect parameters: TPNAME=FLRFCSRV GWHOST=sapd2srv GWSERV=sapgw01
    ERROR       partner '10.165.67.157:sapgw01' not reached
    TIME        Thu Apr 29 09:16:18 2010
    RELEASE     720
    COMPONENT   NI (network interface)
    VERSION     40
    RC          -10
    MODULE      nixxi.cpp
    LINE        3253
    DETAIL      NiPConnect2: 10.165.67.157:3300
    SYSTEM CALL connect
    ERRNO       239
    ERRNO TEXT  Connection refused
    COUNTER     3
        Return code: RFC_FAILURE(1)
        error group: 102
        key: RFC_ERROR_COMMUNICATION
            at com.sap.conn.rfc.engine.RfcIoControl.error_end(RfcIoControl.java:255)
            at com.sap.conn.rfc.engine.RfcIoControl.ab_rfcaccept(RfcIoControl.java:43)
            at com.sap.conn.rfc.api.RfcApi.RfcAccept(RfcApi.java:41)
            at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcServer.accept(MiddlewareJavaRfc.java:2121)
            ... 6 more

    Hello Sir,
    I am a student who is pursuing a project that deals with JCo 3.
    I read your question on the forum and think that you have done the JCo stuff and can answer my questions.
    Kindly, try to shed some light on following question:
    Q1: I simply want to start with connecting my SAP system. I have a user ID and password for the same.
    I saw some examples where they use "JCo.createClient(....)" and "JCo.client.connect()" to simply connect the client but
    when I type in the code it shows me an error, because they are using package "com.sap.mw.jco" but since I am using JCo3,
    I don't have that package instead I have "com.sap.conn.jco" which do not have createClient function.
    Q2: By setting the classpath for "sapjco.jar" I was able to compile one of the sample programs but could not run it. Do you
    know how to run the SAP JCo program.
    Your guidance will be highly appreciated
    -Thanks
    -Dmukhi

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