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Now that is strange, it works after two hours. The only modification I made was to AD when I investigated the Administrator account, I noticed that under the account tab, the User logon name and domain was blank, but it contained information for pre-Windows 2000. Anyhoo, that appears to have fixed it. I appreciate the prompt response.
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Now that is strange, it works after two hours. The only modification I made was to AD when I investigated the Administrator account, I noticed that under the account tab, the User logon name and domain was blank, but it contained information for pre-Windows 2000. Anyhoo, that appears to have fixed it. I appreciate the prompt response.

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i'm having this same problem.. promoted a brand new 2008 server and now can't login with ANY domain admin accounts.
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i'm having this same problem.. promoted a brand new 2008 server and now can't login with ANY domain admin accounts.

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I have a Windows SBS 2003 machine running as the PDC. We are looking to eventually retire this machine, but for the time being, purchased a new server to join to the domain running Windows 2003 R2 Standard and have replication between the two systems. I successfully ran dcpromo on the new machine and rebooted. The new machine came up and I can see that DNS, AD, etc.. have replicated between the two machines; however, I am unable to login to the new Domain Controller as the domain administrator. I can login as another user in AD, but not the Admin account.<br />
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Any ideas?
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I have a Windows SBS 2003 machine running as the PDC. We are looking to eventually retire this machine, but for the time being, purchased a new server to join to the domain running Windows 2003 R2 Standard and have replication between the two systems. I successfully ran dcpromo on the new machine and rebooted. The new machine came up and I can see that DNS, AD, etc.. have replicated between the two machines; however, I am unable to login to the new Domain Controller as the domain administrator. I can login as another user in AD, but not the Admin account.

Any ideas?

Can't logon as Domain Administrator after DCPROMO

Active Directory (AD) is a Microsoft brand for identity-related capabilities. In the on-premises world, Windows Server AD provides a set of identity capabilities and services, and is hugely popular (88% of Fortune 1000 and 95% of enterprises use AD). This topic includes all things Active Directory including DNS, Group Policy, DFS, troubleshooting, ADFS, and all other topics under the Microsoft AD and identity umbrella.

Active Directory

Small Business Server (SBS) is a line of server operating systems targeted at small businesses by bundling the operating system with a number of other Microsoft products that would normally need to be purchased or licensed separately. The most notable inclusions are Exchange, SQL Server, SharePoint and ISA/TMG (Microsoft's firewall and proxy server).

Windows Server 2003 was based on Windows XP and was released in four editions: Web, Standard, Enterprise and Datacenter. It also had derivative versions for clusters, storage and Microsoft’s Small Business Server. Important upgrades included integrating Internet Information Services (IIS), improvements to Active Directory (AD) and Group Policy (GP), and the migration to Automated System Recovery (ASR).