connection problems using juv-client

our environment： centos 6.5  flash media server 4.5   juv-client

our  problem: We use the long connection built by juv-client between clients  and server , and so , different clients can connect eath other by this  connection. But we find that this long connection is not reliable. A  long connection between a client and server will disconnect  automaticly.  Unfortunately, the client can not test this change  succesfully and the server dont  always notice the client.

How can we deal this problem?