I am currently using Openfire 3.5 RC1 on CentOS 5.0 with Active Directory authenication and users keep getting randomly disconnected. I have checked fire wall settings on the router, server, and client computers and this still occurs. This has been happening with previous versions of Openfire. Any one have any ideas how to fix this.

The  error message the Spark Client gives me is "Connection closed due to error" and will not reconnect until I log out and back in.