Many clients all running fine, something then all remote EJB client hang, nothing reported in client logs

JBossAS restarted, first few clients launch ok then hang, attempts to launch new clients gets

[ConfigBasedEJBClientContextSelector] Could not register a EJB receiver for connection to remote://myhostname:4447
java.lang.RuntimeException: Operation failed with status WAITING

The only way we could restart was to make sure that all client jvms had been stopped, then restart jboss-as, then start the clients again

server.log has

15:11:42,258 ERROR [org.jboss.remoting.remote.connection] (Remoting "viafoa" read-1) JBREM000200: Remote connection failed: java.io.IOException: Connection reset by peer
15:11:42,260 ERROR [org.jboss.remoting.remote.connection] (Remoting "viafoa" read-1) JBREM000200: Remote connection failed: java.io.IOException: Connection reset by peer
15:11:42,260 ERROR [org.jboss.remoting.remote.connection] (Remoting "viafoa" read-1) JBREM000200: Remote connection failed: java.io.IOException: Connection reset by peer

14:50:04,831 INFO [org.jboss.as.naming] (Remoting "viafoa" task-3) JBAS011806: Channel end notification received, closing channel Channel ID 3f948bdc (inbound) of Remoting connection 2316c7a6 to /10.180.100.197:1405

During the issue though there is very little at all happening in the logs in relation to remoting and ejb client