Microsoft defender for identity lab: Domain dominance playbook

Hi,

I have built a laboratory with a domain controller and two destkop computer as the laboratory says:

https://learn.microsoft.com/en-us/defender-for-identity/playbook-setup-lab

In the last step, when you have injected the kerberos ticket on command prompt session and you try to run a dir on domain controller, I get always the same error message:

"The system cannot contact a domain controller to service the authentication request. Please try again later."

Has anyone gotten it to work?

Thanks a lot.