Client: OS X/Messages.app
Any attempt to connect from IM client (OS X/Messages.app) disconnects immediately - right after being seemingly successfully connected on GUI.
imagent: [Warning] XMPPConnection: Error: Error Domain=LibXML2ErrorDomain Code=5 "(null)"
WARN [socket_c2s-thread-15]: org.jivesoftware.openfire.nio.ConnectionHandler - Closing connection due to exception in session: (0x00001143: nio socket, server, /clientip:64021 => /serverip:5222)
java.io.IOException: Closing session that seems to be stalled. Preventing OOM
Retrieving data ...