Hi Cesare 1- yes i tried to keep up the connection as you said it’s worked after few minutes and key activated , it ‘s interesting when i uncheck the do not disconnect from the administrative server the key still is active and doesn’t grey out but on other system the situation is the same!!!!!!!! 2- for sync ksc message Device has been queued for synchronization forcing , i test it on two different devices 3-yes this problem has ocurred on all of my devices 4- i allowed any traffic from LAN to Kasper does pass but no traffic passed Thanks