No connect to agent on windows server 2019 core

Hi,

I have a problem to get my windows server 2019 core working as doamin controller and dns into my checkmk. Port 6556 is open as you can see on one of the attachments. if I do a Portcheck on the machine I get in powershell that it is open and also in the firewall settings the port is open. But if I do a a ckeck from a other windows 10 client I get no connection to the port. Also from my debian checkmk server (ip 192.168.20.50) I get no connection.

On Windows 10 Clients everything is fine also in a other subnet. But I can do on the windows server what I want I do not get a connection. Anybody knows what I can check or how I can fix it?

Regards,
Hauke
portcheck_server

portcheck_client

On your core server try to execute the agent with check_mk_agent.exe fw -configure
I have also some 2019 servers where i must execute the firewall settings after every reboot of the machine.

Hi Andreas,

thanks that was the soloution!

Best regards,
Hauke

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