Microsoft defender for identity lab: Domain dominance playbook

Copper Contributor



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


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.

2 Replies
Hi eliasml,

Did you check and verify all MDI prerequisites? These also apply to the lab itself:

Kind regards,
Yes, I did it. A few times.