Hello Fernando,
Generally speaking, some clients won't update or sporadically update their online/offline status, while some others (strictly identical cloned computers) are very snappy and stay always up to date in the console. The same lazy reporting computers won't perform simple powercycling tasks (such as wol, shutdown, restart)
Furthermore, when we issue a link status reset on console top root, some of our managed computers doesn't respawn in the console, eventhough they are powered on. Ping works both ways, so we ruled out network communication errors.
All our agents received the same production settings from the console (Direct IP connection instead of multicast + no communication encryption)
This is happening on bare machines, right now we are at a complete loss to understand this inconsistent behaviour.