I copied a Windows Server 2008 domain controller (Hyper-V VM) from company to my home for testing. I impoted the VM and seized all FSMO roles to this dc. DNS server and all AD tools cannot locate the AD information after I restart the dc everytime. Please refer to the following screenshot.
After I used the tool NTDSUTIL and submited roles -> connections, All DNS and AD services decame normally.
I want to know that why happpen this issue and how to fix it.
Note this domain contain 6 DCs, however, I only copied one dc to my home network and I will delete the other five dc later.