Unexpected errors can surface when the Active Directory Users and Computers or Sites and Services MMC is loaded. This happens immediately after the Windows Server 2008 DHCP Server role is installed for the first time and restarted on a domain member server with the correct TCP/IP settings.
Active Directory Domain Services
The domain mydomain.com could not be found because: Logon failure: unknown user name or bad password.
Active Directory Domain Services
Naming information cannot be located because: Logon failure: unknown user name or bad password. Contact your system administrator to verify that your domain is properly configured and is currently online.
Although the built-in domain administrator account is used to sign-in and specified for the purpose of authorizing the server in Active Directory while configuring a new DHCP scope (at the time of installing the DHCP server), the DHCP server in reality has not been authorized despite the Action menu showing “Unauthorize”.
In the System event log, error ID 1059 is logged with “The DHCP service failed to see a directory server for authorization”. Event ID 1046 may also be written:
The DHCP/BINL service on the local machine, belonging to the Windows Administrative domain mydomain.com, has determined that it is not authorized to start. It has stopped servicing clients. The following are some possible reasons for this:
This machine is part of a directory service enterprise and is not authorized in the same domain. (See help on the DHCP Service Management Tool for additional information).
This machine cannot reach its directory service enterprise and it has encountered another DHCP service on the network belonging to a directory service enterprise on which the local machine is not authorized.
Some unexpected network error occurred.
To fix, following the steps here:
1. remove the DHCP Server role and reboot the machine
2. Unjoin then rejoin the Windows Server 2008 machine to the domain
3. install the DHCP server role and specify the built-in Administrator account for authorization in AD
4. create and activate DHCP scopes
Technorati tags: Active Directory, Windows Server 2008