Hi,
We are trying to uninstall Exchange 2007 SP3 since we have migrated to Exchange 2013 already. Our forest/domain level functionality are on 2008 R2. DCs are running Windows 2016. When trying to uninstall Exchange 2007 SP3, we are getting the well known "[ERROR] Cannot find at least one global catalog server running Windows Server 2003 Service Pack 1 or later in the local Active Directory site." error message. From our Exchange 2007 server, we can use dsquery and nslookup to query the GC without any issues.
We also tried to set the StaticGlobalCatalogs and StaticDomainControllers on the Exchange 2007 server but it didn't help. From the Exchange 2007 EMC, I can see that we have the preferred DC and DC for exchange to use. Any ideas of what's causing the problems? The Exchange setup log didn't provide much useful information.
8/14/2020 3:49:05 PM] [0] **************
[8/14/2020 3:49:05 PM] [0] Setup will run the task 'test-setuphealth'
[8/14/2020 3:49:05 PM] [1] Setup launched task 'test-setuphealth -DomainController 'hostname.domain.org' -DownloadConfigurationUpdates $true -ExchangeVersion '8.3.485.1' -Roles 'Mailbox' -ScanType 'PrecheckUninstall' -SetupRoles 'Mailbox','ClientAccess' -TargetDir 'M:\Exchange Server' -IISInstalled $true'
[8/14/2020 3:49:05 PM] [1] Beginning processing.
[8/14/2020 3:50:36 PM] [1] Beginning processing.
[8/14/2020 3:50:36 PM] [1] Ending processing.
[8/14/2020 3:50:36 PM] [1] Beginning processing.
[8/14/2020 3:50:36 PM] [1] Administrator Active Directory session settings are: View Entire Forest: 'True', Configuration Domain Controller: 'hostname.domain.org', Preferred Global Catalog: 'hostname.domain.org', Preferred Domain Controllers: '{ hostname.domain.org }'
[8/14/2020 3:50:36 PM] [1] Searching objects "ServerNameX" of type "Server" under the root "$null".
[8/14/2020 3:50:36 PM] [1] Previous operation run on domain controller 'hostname.domain.org'.
[8/14/2020 3:50:36 PM] [1] Previous operation run on domain controller 'hostname.domain.org'.
[8/14/2020 3:50:36 PM] [1] Preparing to output objects. Maximum result set size "unlimited".
[8/14/2020 3:50:36 PM] [1] Ending processing.
[8/14/2020 3:50:37 PM] [1] [ERROR] Cannot find at least one global catalog server running Windows Server 2003 Service Pack 1 or later in the local Active Directory site.
[8/14/2020 3:50:37 PM] [1] Ending processing.
[8/14/2020 3:50:37 PM] [0] **************
Thank you!