There problem about openfire

1 After openfire upgrade to 3.4.2, when client send message, especially long message, the client always automatically disconnects from server, and soon automatically reconnect to server. Is anyone encounter this problem? And why it happens?

2 We Set up an openfire server.And the client access it from LAN or WAN. When client access the server from LAN, it is stable, but when client access the server fromWAN, the client always automatically disconnects from server, and soon reconnected to server, this phenomena repeatedly.Is this relate to the openfire server’s configuration or other reseasons?

3 In the forum, some has put forward that in recently released openfire version, there are some unrecognizable characters in receiving message, I also encounter this problem, Is this resolved?My database is sql server 2005.