A Windows Server 2012 has just been restored from WindowsImageBackup. It is a stand-alone DC that provides basic AD/DNS/DHCP/File shares. Due to catastrophic hardware failure the restore has been performed to a completely new set of equivalent hardware (Dell T110 II server).
Although things generally appear to be working (staff are able to access file shares, internet, printers, etc), there are a number of faults:-
- Network adapter has "Public" network type
- A plethora of various errors pertaining to DNS failure and no DC being found
- "Active Directory Sites and Services" does not display any items (the usual expandable tree etc).
And there is a strong suspicion that users are logging on to their workstations with "cached" credentials and not being authenticated by the server.
The errors being logged include
16651 Request for a new account-identifier pool failed
14550 DFS Namespace svc could not init cross-forest trust info on this DC
68 Certificate enrolment for Local system failed in authentication to policy servers ... (The specified Domain does not exist or could not be contacted)
67 (related to 68)
1126 AD DS was unable to establish a connection with the global catalog.
And a multitude of others, with a common theme of the DC not being "active" or failed DNS lookup of the domain etc.
Is there a checklist procedure that I can refer to do diagnose how to restore this DC to operational status? Or any other suggestions on how to tackle this? Thanks.