I'm having a very hard time with Active Directory.
Brand new server with a fresh install of Windows Server 2008 R2 SP1. Everything was fine until it restarted after installing updates.
When I try to access ADUC, I receive a message "Naming information cannot be located because: The network path was not found"
If I run dcdiag from cmd, I get:
Trying to find home server...
Home Server = CEMSA-AD
[CEMSA-AD] LDAP connection failed with error 0,
The operation completed successfully..
[CEMSA-AD] Unrecoverable LDAP Error 89:
I have checked DNS, it is all correct, nslookup resolves correctly. LDAP is also running as I can connect to the LDAP server using Sysinternals AD Explorer.
Problem is, I cannot manage any users and groups at the moment.
Active Directory Administration Center works, but again, parts of it such as group memberships fail.