Hi @ all
We are currently migrating a Domain Controller from Windows Server 2008 SBS to Windows Server 2012. I successfully added the Windows Server 2012 as a domain Controller in my forest and moved all FSMO-roles over to the new server. Everything seams runnig fine since there aren't any errors or warnings in the eventlog. I also can successfully replicate between the two DCs. All required entrys in the DNS are available too and the DC is listed as domain controller, GC and DNS- server. The two DCs are set to use the new DNS-server as primary DNS-Server.
If I want to demote the old 2008SBS I get many errors telling me that there can't be contacted any domain controller in the specified domain and the specified domain is not available, and the dcpromo finishs without demoting the old server.
If I run a dcdiag I get different errors. (DCdiag in the attachments) dcdiag-NEW-Server-2012.txt
What could be the problem?
Thanks a lot for any help