Flash Media Server Drops Users

Hello!

I m experience a strange situation.

Our servers are Intel i7 - 33 GB Ram and 10 Gb fiber connection.

Well, when a LIVE instance reach 2800 users, all of them are disconnected from the application.

Have you experienced similar situation before?

Is a tunning issue?

Note: Users connected to other instances / live are not affected. Only the users @ this instance with more than 2800 users.

We tryed with both versions 4.0 and 4.5

Linux Debian Squeeze 64 Bits

Regards,
Rafael