WAS: incorrect bootstrap address or unavailable name server

[4/11/13 10:40:08:999 EDT] 00000021 SystemOut     O [41618] DEBUG - com.cot.esd.servicelocator.EJBServiceLocator - Failed to setup ejb service repository
com.cot.esd.servicelocator.ejb.util.EJBUnavailable: {SRE1444230150} EJB client for jndi(ejb/ejbServiceLocator) failed 3 times; nested exception is javax.naming.ServiceUnavailableException: A communication failure occurred while attempting to obtain an initial context with the provider URL: "iiop://localhost:9810".  Make sure that any bootstrap address information in the URL is correct and that the target name server is running.  A bootstrap address with no port specification defaults to port 2809.  Possible causes other than an incorrect bootstrap address or unavailable name server include the network environment and workstation network configuration.
javax.naming.ServiceUnavailableException: A communication failure occurred while attempting to obtain an initial context with the provider URL: "iiop://localhost:9810".  Make sure that any bootstrap address information in the URL is correct and that the target name server is running.  A bootstrap address with no port specification defaults to port 2809.  Possible causes other than an incorrect bootstrap address or unavailable name server include the network environment and workstation network configuration. [Root exception is org.omg.CORBA.TRANSIENT: java.net.ConnectException: Connection refused:host=xxx,port=9810  vmcid: IBM  minor code: E02  completed: No]
        at com.ibm.ws.naming.util.WsnInitCtxFactory.mapInitialReferenceFailure(WsnInitCtxFactory.java:2372)
        at com.ibm.ws.naming.util.WsnInitCtxFactory.getWsnNameService(WsnInitCtxFactory.java:1527)
        at com.ibm.ws.naming.util.WsnInitCtxFactory.getRootContextFromServer(WsnInitCtxFactory.java:1040)
        at com.ibm.ws.naming.util.WsnInitCtxFactory.getRootJndiContext(WsnInitCtxFactory.java:962)
        at com.ibm.ws.naming.util.WsnInitCtxFactory.getInitialContextInternal(WsnInitCtxFactory.java:614)
        at com.ibm.ws.naming.util.WsnInitCtx.getContext(WsnInitCtx.java:128)
        at com.ibm.ws.naming.util.WsnInitCtx.getContextIfNull(WsnInitCtx.java:765)
        at com.ibm.ws.naming.util.WsnInitCtx.lookup(WsnInitCtx.java:164)
        at com.ibm.ws.naming.util.WsnInitCtx.lookup(WsnInitCtx.java:179)
        at org.apache.aries.jndi.DelegateContext.lookup(DelegateContext.java:161)
        at javax.naming.InitialContext.lookup(InitialContext.java:392)
        at com.cot.esd.servicelocator.ejb.util.EJBCreator.getHome(EJBCreator.java:74)
        at com.cot.esd.servicelocator.ejb.util.EJBCreator.getInst(EJBCreator.java:162)
        at com.cot.esd.servicelocator.ejb.util.EJBCreator._getInstance(EJBCreator.java:120)
        at com.cot.esd.servicelocator.ejb.util.EJBCreator._getInstance(EJBCreator.java:154)
        at com.cot.esd.servicelocator.ejb.util.EJBCreator._getInstance(EJBCreator.java:154)
        at com.cot.esd.servicelocator.ejb.util.EJBCreator._getInstance(EJBCreator.java:154)
        at com.cot.esd.servicelocator.ejb.util.EJBCreator.create(EJBCreator.java:113)
        at com.cot.esd.servicelocator.EJBServiceLocator.setupAndTry0(EJBServiceLocator.java:150)