Error al conectar a WEB Service

[fuas]

Hola a todos

Tengo desarrollado un web service sobre jboss el cual me genera este error al realizar la conexion

Error de transporte HTTP: java.net.ConnectException: Connection timed out
at com.sun.xml.rpc.client.http.HttpClientTransport.in voke(HttpClientTransport.java:140)
at com.sun.xml.rpc.client.StreamingSender._send(Strea mingSender.java:96)
at com.sun.xml.rpc.client.dii.CallInvokerImpl.doInvok e(CallInvokerImpl.java:103)
at com.sun.xml.rpc.client.dii.BasicCall.invoke(BasicC all.java:486)
at com.sun.xml.rpc.client.dii.CallInvocationHandler.d oCall(CallInvocationHandler.java:121)
at com.sun.xml.rpc.client.dii.CallInvocationHandler.i nvoke(CallInvocationHandler.java:85)
at $Proxy0.getNumeroRegistrosEnCola(Unknown Source)
at com.selsa.linnet.cliente.ws.LeerTransaccion.getNum eroRegistros(LeerTransaccion.java:49)
at com.selsa.linnet.cliente.proceso.EnviarRecibir.run (EnviarRecibir.java:57)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)

CAUSE:

java.net.ConnectException: Connection timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at sun.net.NetworkClient.doConnect(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.openServer(Unknown Source)
at sun.net.www.http.HttpClient.<init>(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.http.HttpClient.New(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getNew HttpClient(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.plainC onnect(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.connec t(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getOut putStream(Unknown Source)
at com.sun.xml.rpc.client.http.HttpClientTransport.wr iteMessageToConnection(HttpClientTransport.java:38 2)
at com.sun.xml.rpc.client.http.HttpClientTransport.in voke(HttpClientTransport.java:86)
at com.sun.xml.rpc.client.StreamingSender._send(Strea mingSender.java:96)
at com.sun.xml.rpc.client.dii.CallInvokerImpl.doInvok e(CallInvokerImpl.java:103)
at com.sun.xml.rpc.client.dii.BasicCall.invoke(BasicC all.java:486)
at com.sun.xml.rpc.client.dii.CallInvocationHandler.d oCall(CallInvocationHandler.java:121)
at com.sun.xml.rpc.client.dii.CallInvocationHandler.i nvoke(CallInvocationHandler.java:85)
at $Proxy0.getNumeroRegistrosEnCola(Unknown Source)
at com.selsa.linnet.cliente.ws.LeerTransaccion.getNum eroRegistros(LeerTransaccion.java:49)
at com.selsa.linnet.cliente.proceso.EnviarRecibir.run (EnviarRecibir.java:57)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)

La configuracion de comunicaciones que tengo es: un firewall que redirecciona las peticiones al puerto 8080 al servidor interno de JBOSS.

Lo raro es que 2 clientes si se conectan sin problema.

Alguna idea