WCM Syndication failed between 2 wps v6.0.1.5 portal

Hi List,

am trying to syndicate between two v6.0.1.5 portals. Can ping and access each other. But
*In Syndicator site we got*:
Caused by: com.aptrix.syndication.messaging.GenericPayloadException: IWKSY1057X: Code #300, IWKSY1058X: phrase: Generic catastrophic payload error, IWKSY1059X: detail: IWKSY1050X: Exception occured while sending payload to URL: [url]http://:10038/wps/wcm/connect/?MOD=SubsIWKSY1060X:[/url] (Cause: com.presence.connect.connector.MessageException: IWKCC1093X: Error performing POST operation (send) )

*In Subscribor site got*:
[09-8-3 16:19:11:500 CST] 00000069 RebuildSubscr E Could not update subscriber with id 4dce97004f11b199a092f0e00af7f82b
com.aptrix.syndication.IceException: IWKSY1057X: Code #400, IWKSY1058X: phrase: Generic request error
at com.aptrix.syndication.business.AbstractRequestBL.checkResponse(AbstractRequestBL.java:97)
at com.aptrix.syndication.business.subscriber.RequestBL.updateSubscription(RequestBL.java:340)
at com.aptrix.deployment.subscriber.PlutoSubscriber.sendUpdateRequest(PlutoSubscriber.java:320)
at com.ibm.workplace.wcm.app.ui.admin.subscriber.RebuildSubscriberCommand.doCommand(RebuildSubscriberCommand.java:139)
at com.ibm.workplace.wcm.app.ui.portlet.command.AbstractCommand.commandPerformed(AbstractCommand.java:173)
at com.ibm.psw.wcl.core.CommandHandler.handleCommand(CommandHandler.java:74)
at com.ibm.psw.wcl.core.markup.WHyperlink$EHyperlinkCallbackWrapper.handleTrigger(WHyperlink.java:475)
at com.ibm.psw.wcl.core.trigger.Trigger.process(Trigger.java:299)
at com.ibm.psw.wcl.core.trigger.TriggerManager.processTrigger(TriggerManager.java:781)
at com.ibm.psw.wcl.portlet.WclPortletTriggerManager.handleRequest(WclPortletTriggerManager.java:260)
at com.ibm.psw.wcl.portlet.WclPortletFacade.handleRequest(WclPortletFacade.java:497)
at com.ibm.psw.wcl.portlet.WclPortletFacade.handleRequest(WclPortletFacade.java:478)
at com.ibm.workplace.wcm.app.ui.admin.AdminPortlet.actionPerformed(AdminPortlet.java:260)
at com.ibm.wps.pe.pc.legacy.SPIPortletInterceptorImpl.handleEvents(SPIPortletInterceptorImpl.java:323)
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletDelegateImpl._dispatch(PortletDelegateImpl.java:378)
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletDelegateImpl.access$200(PortletDelegateImpl.java:61)
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletDelegateImpl$Context.callPortlet(PortletDelegateImpl.java:492)
at com.ibm.wps.pe.pc.legacy.services.PortletFilterServiceImpl.doFilter(PortletFilterServiceImpl.java:367)
at com.ibm.wps.pe.pc.legacy.services.PortletFilter.doFilter(PortletFilter.java:42)
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletDelegateImpl.dispatch(PortletDelegateImpl.java:132)
at org.apache.jetspeed.portlet.Portlet.doGet(Portlet.java:499)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at com.ibm.wps.pe.pc.legacy.cache.CacheablePortlet.service(CacheablePortlet.java:120)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at org.apache.jetspeed.portlet.Portlet.service(Portlet.java:493)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1746)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.include(WebAppRequestDispatcher.java:670)
at com.ibm.wps.pe.om.definition.impl.ServletDefinitionImpl$RDWrapper.include(ServletDefinitionImpl.java:419)
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletInvokerImpl.callMethod(PortletInvokerImpl.java:377)
at com.ibm.wps.pe.pc.legacy.invoker.impl.PortletInvokerImpl.action(PortletInvokerImpl.java:83)
at com.ibm.wps.pe.pc.legacy.PortletContainerImpl.callPortletMethod(PortletContainerImpl.java:1129)
at com.ibm.wps.pe.pc.legacy.EventEnvironmentImpl.includePortlet(EventEnvironmentImpl.java:171)
at com.ibm.wps.pe.pc.legacy.event.ActionEventImpl.prepare(ActionEventImpl.java:201)
at com.ibm.wps.pe.pc.legacy.event.EventQueueManager.processEventLoop(EventQueueManager.java:87)
at com.ibm.wps.pe.pc.legacy.PortletContainerImpl.performEvents(PortletContainerImpl.java:214)
at com.ibm.wps.pe.pc.PortletContainerImpl.performEvents(PortletContainerImpl.java:241)
at com.ibm.wps.engine.phases.WPActionPhase.processPortlets(WPActionPhase.java:1020)
at com.ibm.wps.engine.phases.WPActionPhase.execute(WPActionPhase.java:506)
at com.ibm.wps.state.phases.AbstractActionPhase.next(AbstractActionPhase.java:130)
at com.ibm.wps.engine.Servlet.callPortal(Servlet.java:792)
at com.ibm.wps.engine.Servlet.doGet(Servlet.java:633)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1746)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1695)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:136)
at com.ibm.wps.state.filter.StateCleanup.doFilter(StateCleanup.java:88)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:142)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:121)
at com.ibm.wps.mappingurl.impl.URLAnalyzer.doFilter(URLAnalyzer.java:263)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:142)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:121)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:82)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3226)
at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:253)
at com.ibm.ws.webcontainer.VirtualHost.handleRequest(VirtualHost.java:248)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:1970)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:120)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:434)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:373)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:253)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminaters(NewConnectionInitialReadCallback.java:207)
at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:109)
at com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueManager.java:566)
at com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager.java(Compiled Code))
at com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager.java:952)
at com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueueManager.java:1039)

Any ideas?

Thank you in advance
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java(Compiled Code))