AD_BLUE

Good morning. I´m trying to run a task in Kaspersky Security Center to activate the license in more or less 500 computers, but I´m not able to activate the new license. I try to run netstat command to see if certain computers have an "ESTABLISHED" connection to the server and it´s ok. Additionally, i run Klnagchk utility to see if the Network agent is connected to the Administration server and it´s ok too. What can be the problem?