RMIAsynchronousCach Replicator Error

[littlet]

I have two Content Manager's set up on two separate boxes running Cognos 11.0.6.   the Second box is setup  as a standby.  I have replication set up between the boxes for security.  I have entered the ports in the configuration of each.  I have verified that the port is open and that they can talk to each other. 

In the p2pd_messages log on primary server, I get an error over and over.  " net.sf.ehcache.distribution.RMIAsynchronousCacheReplicator  W Unable to send messages to remote peer.  Message was: no such object in table".  On the Standby I can see the following error:  "net.sf.ehcache.distribution.RMIBootstrapCacheLoader  W Error Asynchronously performing bootstrap.  The case was:  Error bootstrapping from remote peer.  Message was:  no such object in table"

Does anyone know what could be causing this error?