@Clive_A Thank your for the answer, I have isolate the problem, as I have couple of the laptop that are connected to switch via thunderbolt (qnap t310g1s). When connected to the mac the power is...

Couple off days ago I have upgrade my switch to ver 1.20.0 and my network activity light went bizzar. Sometime they do not turn on when device come online after reboot they come led up, but when the...