File Transfer Proxy Not Works

Hi all,

I am running openfire server 3.10.0 and enable file transfer proxy. But when transfer files bi-direction one peer can received files but the other one can not. In error log there are something like that:

2015.05.14 16:35:35 org.jivesoftware.openfire.filetransfer.proxy.ProxyConnectionManager - Error processing file transfer proxy connection

java.net.SocketException: Connection reset

at java.net.SocketInputStream.read(Unknown Source)

at java.net.SocketInputStream.read(Unknown Source)

at java.net.SocketInputStream.read(Unknown Source)

at java.io.FilterInputStream.read(Unknown Source)

at org.jivesoftware.openfire.filetransfer.proxy.ProxyConnectionManager.processConn ection(ProxyConnectionManager.java:156)

at org.jivesoftware.openfire.filetransfer.proxy.ProxyConnectionManager.access$200( ProxyConnectionManager.java:57)

at org.jivesoftware.openfire.filetransfer.proxy.ProxyConnectionManager$1$1.run(Pro xyConnectionManager.java:127)

at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)

at java.util.concurrent.FutureTask.run(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

I googled a lot can't resolve it. any suggestion?

TIA,

Jackie