Today we are announcing the availability of quarterly Cumulative Updates (CUs) for Exchange Server 2016 and Exchange Server 2019. These CUs include fixes for customer reported issues, all previously ...
Updated Jun 29, 2021
Version 1.0
Blog Post
I did have to recreate my Computers Container as many pointed out, but that did not resolve my issue. I am still experiencing a failure running the PrePareAD.
Anyone that was successful, can you tell me what item follows the domain controllers in your ExchangeSetupLog
[07/20/2021 02:45:02.0246] [2] Beginning processing initialize-DomainPermissions
[07/20/2021 02:45:02.0254] [2] Used domain controller DC1.corp.com to read object DC=corp,DC=com.
[07/20/2021 02:45:02.0262] [2] Used domain controller DC1.corp.com to read object CN=Exchange Servers,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0263] [2] Used domain controller DC1.corp.com to read object CN=Exchange Servers,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0271] [2] Used domain controller DC1.corp.com to read object CN=Organization Management,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0271] [2] Used domain controller DC1.corp.com to read object CN=Organization Management,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0279] [2] Used domain controller DC1.corp.com to read object CN=Public Folder Management,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0279] [2] Used domain controller DC1.corp.com to read object CN=Public Folder Management,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0286] [2] Used domain controller DC1.corp.com to read object CN=Exchange Trusted Subsystem,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0287] [2] Used domain controller DC1.corp.com to read object CN=Exchange Trusted Subsystem,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0294] [2] Used domain controller DC1.corp.com to read object CN=Exchange Windows Permissions,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0294] [2] Used domain controller DC1.corp.com to read object CN=Exchange Windows Permissions,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0300] [2] Used domain controller DC1.corp.com to read object CN=Domain Users,OU=Default Security Groups,OU=CORP,DC=corp,DC=com.
[07/20/2021 02:45:02.0308] [2] Used domain controller DC1.corp.com to read object CN=Delegated Setup,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0308] [2] Used domain controller DC1.corp.com to read object CN=Delegated Setup,OU=Microsoft Exchange Security Groups,DC=corp,DC=com.
[07/20/2021 02:45:02.0340] [2] Used domain controller DC1.corp.com to read object DC=corp,DC=com.
[07/20/2021 02:45:02.0501] [2] Used domain controller DC1.corp.com to read object CN=AdminSDHolder,CN=System,DC=corp,DC=com.
[07/20/2021 02:45:02.0537] [2] Used domain controller DC1.corp.com to read object CN=Computers,DC=corp,DC=com.
[07/20/2021 02:45:02.0556] [2] Used domain controller DC1.corp.com to read object CN=DC1,CN=Servers,CN=CORPN,CN=Sites,CN=Configuration,DC=corp,DC=com.
[07/20/2021 02:45:02.0595] [2] Used domain controller DC1.corp.com to read object CN=DC2,CN=Servers,CN=CORPS,CN=Sites,CN=Configuration,DC=corp,DC=com.
[07/20/2021 02:45:02.0629] [2] Used domain controller DC1.corp.com to read object CN=DC3,CN=Servers,CN=CORPN,CN=Sites,CN=Configuration,DC=corp,DC=com.
[07/20/2021 02:45:02.0665] [2] Used domain controller DC1.corp.com to read object CN=DC4,CN=Servers,CN=CORPS,CN=Sites,CN=Configuration,DC=corp,DC=com.
[07/20/2021 02:45:02.0699] [2] Used domain controller DC1.corp.com to read object CN=RODC1,CN=Servers,CN=CORP-DMZ,CN=Sites,CN=Configuration,DC=corp,DC=com.
[07/20/2021 02:45:02.0753] [2] [ERROR] Object reference not set to an instance of an object.
After I created the Computer CN so I made it past AdminSDHolder, but now hung up again...