I have a simple AD LDS instance setup on a Windows 2016 server:
c:\windows\ADAM\adaminstall /answer:E:\ADLDS\instance3\adaminstall.cfg
with the content of E:\ADLDS\instance3\adaminstall.cfg
[ADAMInstall] ApplicationPartitionsToReplicate=* InstallType=Unique InstanceName=instance2 LocalLDAPPortToListenOn=3891 LocalSSLPortToListenOn=6361 AddPermissionsToServiceAccount=Yes NewApplicationPartitionToCreate=dc=com DataFilesPath=E:\ADLDS\instance2\data LogFilesPath=E:\ADLDS\instance2\log Administrator=myAdminGroup
I can add a replica instance using the following installfile
[ADAMInstall] ConfigurationSetLevel=5 ApplicationPartitionsToReplicate=* InstallType=Replica InstanceName=instance3 LocalLDAPPortToListenOn=3892 LocalSSLPortToListenOn=6362 DataFilesPath=E:\ADLDS\instance3\data LogFilesPath=E:\ADLDS\instance3\log SourceServer=localhost SourceLDAPPort=3891 Administrator=MyAdminGroup
But if I change the functional level of the first instance to WIN2012R2 (msDS-Behavior-Version=6) before I create the replica instance, the creation of the replica fails:
Active Directory Lightweight Directory Services could not create the NTDS Settings object for this Active Directory Lightweight Directory Services
instance CN=NTDS Settings,CN=<Server name>$instance3,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,CN={6BA71401-BACF-47A0-A59B-9F8CC
9A6E9C2} on the remote AD LDS instance localhost:3891. Ensure the provided network credentials have sufficient permissions.
Error code: 0x80072177
The version of the operating system installed on this server is incompatible with the functional level of the domain or forest.This problem is already described in https://jorgequestforknowledge.wordpress.com/category/active-directory-lightweight-directory-services-adlds/functional-level/ but there the author saysthis issue does not exist in Windows 2016 anymore, but apparently it does.
Is there any way one can add a replica to a AD LDS instance where the functional level is on WIN2012R2?