Event ID 1047 — DHCP Authorization and Conflicts

Applies To: Windows Server 2008

When configured correctly and authorized for use on a network, Dynamic Host Configuration Protocol (DHCP) servers provide a useful administrative service. However, a misconfigured or unauthorized DHCP server can cause problems. For example, if an unauthorized DHCP server starts, it might begin either leasing incorrect IP addresses to clients or negatively acknowledging DHCP clients that attempt to renew current IP address leases.

To resolve these issues, DHCP servers are verified as authorized in Active Directory Domain Services before they can service clients. This prevents most of the accidental damage caused by either misconfigured DHCP servers or correctly configured DHCP servers running on the wrong network.

Event Details

Product: Windows Operating System
ID: 1047
Source: Microsoft-Windows-DHCP-Server
Version: 6.0
Message: The DHCP/BINL service on the local computer has determined that it is authorized to start. It is servicing clients now.
The DHCP/BINL service has determined that the computer was recently upgraded. If the computer is intended to belong to a directory service enterprise, the DHCP service must be authorized in the directory service for it to start servicing clients. (See help on DHCP Service Management Tool for authorizing the server).


This is a normal condition. No further action is required.

DHCP Authorization and Conflicts

DHCP Infrastructure