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Recommended solutions based on your search No such device at Method) at at at weblogic.cluster.FragmentSocket.initializeMulticastSocket( at weblogic.cluster.FragmentSocket.start( at weblogic.cluster.MulticastManager.startListening( at weblogic.cluster.ClusterCommunicationService.initialize( at weblogic.t3.srvr.T3Srvr.initializeHere( at weblogic.t3.srvr.T3Srvr.initialize( at at weblogic.Server.main(