Problem Trying to Demote Old Domain Controller

Job ID: 31116604

Budget: £20 – £250 GBP

I have a Hyper V VM running a replica of a DC we have in the wild. The server is running 2012 essentials and I want to replace this with Server 2019. I have added the new server and promoted it to a DC. There is some problem with replication because SYSVOL and NETLOGON shares haven't been created on the New DC. On the old server if I try to demote it I get an error saying that another DC can't be found.

This is in a test environment and I want to over come these issues before I try to do this for real. There might be a possibility of on going mini projects for the right candidate. We need someone with good english skills, written and verbal. UK timezone would be benficial but not totally necessary.
Related categories: Windows Server Network Administration