Currently we are using JBoss 4.2, suddenly the client could not able to communicate the JBoss server, but its already working application with out any changes.

Could you please help us to proceed further. Thanks.

javax.naming.CommunicationException: Failed to retrieve stub from server xxx.xxx.xxx.xxx:xxxx [Root exception is java.io.EOFException]

  at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:268)

  at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1533)

  at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:634)

  at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627)

  at javax.naming.InitialContext.lookup(Unknown Source)

ERROR [ocketComm:60361] - Security Exception Could not obtain connection to any of these urls: xxx.xxx.xxx.xxx:xxxx and discovery failed with error:

javax.naming.CommunicationException: Receive timed out [Root exception is java.net.SocketTimeoutException: Receive timed out]. Exiting.

javax.naming.CommunicationException: Could not obtain connection to any of these urls: xxx.xxx.xxx.xxx:xxxx and discovery failed with error:

javax.naming.CommunicationException: Receive timed out [Root exception is java.net.SocketTimeoutException: Receive timed out]

[Root exception is javax.naming.CommunicationException: Failed to retrieve stub from server xxx.xxx.xxx.xxx:xxxx [Root exception is java.io.EOFException]]

  at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1562)

  at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:634)

  at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:627)

  at javax.naming.InitialContext.lookup(Unknown Source)