2582843 - Message server error when opening PI Integration Builder tools

• You are trying to open the Process Integration (PI) or Process Orchestration (PO) Integration Builder (IB) tools, but they are not opening.
• From the Java WebStart Console trace (SAP note 1891480) the following error can be seen:
  #11 12:49:21 [AWT-EventQueue-2] ERROR com.sap.aii.ib.clsif.login.EJBHomeFactory: MessageID=IBF.clntlib.005430#Message server not available ms://<FQDN hostname>:<message server http port>/P4
  Thrown:
  com.sap.aii.utilxi.misc.api.ReconnectRuntimeException: Cannot connect to server using message server: ms://<FQDN hostname>:<message server http port>//P4
   at com.sap.aii.ib.clsif.login.EJBHomeFactory.getInitialContext(EJBHomeFactory.java:177)
   at com.sap.aii.ib.clsif.login.EJBHomeFactory.connect(EJBHomeFactory.java:209)
   at com.sap.aii.ib.clsif.login.EJBHomeFactory.initRemoteFactory(EJBHomeFactory.java:121)
   at com.sap.aii.ib.clsif.login.LoginServiceImpl.login(LoginServiceImpl.java:447)
   at com.sap.aii.ib.clsif.login.LoginServiceImpl.login(LoginServiceImpl.java:198)
   at com.sap.aii.ib.gui.login.SplashLoginFrame$LoginController.doTrial(SplashLoginFrame.java:1378)
   at com.sap.aii.ib.gui.login.SplashLoginFrame$StartupWaiter$1$1.run(SplashLoginFrame.java:567)
   at java.awt.event.InvocationEvent.dispatch(Unknown Source)
   at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
   (..)
  
  Caused by: javax.naming.NamingException: Exception while trying to get InitialContext.
  at com.sap.engine.services.jndi.InitialContextFactoryImpl.getInitialContext(InitialContextFactoryImpl.java:386)
  at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
  at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
  at javax.naming.InitialContext.init(Unknown Source)
  at javax.naming.InitialContext.<init>(Unknown Source)
  at com.sap.aii.ib.clsif.login.EJBHomeFactory.getInitialContext(EJBHomeFactory.java:688)
  ... 21 more
  
  Caused by: com.sap.engine.interfaces.cross.DestinationException: Cannot establish connection with any of the available profiles. Check if server is started, access point for the protocol is available, and IP/Host name is accessible on the network.
  URL=ms://<FQDN hostname>:<message server http port>//P4, protocol=P4(None), Reason: com.sap.engine.services.rmi_p4.P4IOException: Cannot open connection to host: <IP address> and port: <ICM P4 port>;
   at com.sap.engine.interfaces.cross.Destination.getNextAvailableBroker(Destination.java:75)
   at com.sap.engine.interfaces.cross.Destination.getRemoteBroker(Destination.java:39)
   at com.sap.engine.services.jndi.InitialContextFactoryImpl.getInitialContext(InitialContextFactoryImpl.java:298)
   ... 26 more
  Caused by: com.sap.engine.services.rmi_p4.P4IOException: Cannot open connection to host: <IP address> and port: <ICM P4 port>
   at com.sap.engine.services.rmi_p4.P4ObjectBrokerClientImpl.getException(P4ObjectBrokerClientImpl.java:828)
   at com.sap.engine.services.rmi_p4.ConnectionManager.getConnection(ConnectionManager.java:298)
   at com.sap.engine.services.rmi_p4.P4ObjectBrokerClientImpl.getInitialConnection(P4ObjectBrokerClientImpl.java:980)
   at com.sap.engine.services.rmi_p4.P4ObjectBrokerClientImpl.getRemoteBroker(P4ObjectBrokerClientImpl.java:898)
   at com.sap.engine.interfaces.cross.Destination.getNextAvailableBroker(Destination.java:59)
   ... 28 more
  Caused by: java.net.ConnectException: Connection timed out: connect
   ... 31 more

PI tools, Integration, Repository, Builder, ESR, IB, Open, Java WebStart Console,  Message server not available, ms://, P4, ReconnectRuntimeException, Cannot connect, Server, Message Server, Cannot establish connection, Profiles, Protocol, , Hosts, OS level, IP address, Fully Qualified Domain Name, FQDN, Parameter,  Restart, Process Integration 7.0, PI 7.0, PI 7.01, PI 7.02, Process Integration 7.10, PI 7.10, Process Integration 7.11, PI 7.11, Process Integration 7.30, PI 7.30, Process Integration 7.31, PI 7.31, Process Orchestration 7.40, PI 7.40, PO 7.40, Process Orchestration 7.50, PI 7.50, PO 7.50, NetWeaver, XI, AEX , KBA , BC-XI-IBF , Framework , BC-CST-IC , Internet Communication Manager , BC-NET , Obsolete - Formerly used for network tests , BC-CST-MS , Message Service , BC-CST-NI , Network Interface , Problem