DhcpServer error 1056 in Event Logs - Is it okay to overwrite existing credentials?

In the event logs on an A/D Server (Windows 2003) I see a DhcpServer error - event 1056 - generated each time the server is started.  I want to follow the solution in KB282001 by just adding credentials, but when I click on Credentials under the Advanced tab I see that a password is present but with no username or domain.    

I want to be sure that I would not be disturbing anything set up by another administrator if I add the Administrator account to this area to eliminate this error.
james_axtonAsked:
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james_axtonAuthor Commented:
Should I read this to mean that the blank username and blank domain fields mean that the service is currently running under the domain controller account?  

Also, I didn't note that the service does start but that this error is still generated.  I'm not sure if that matters or not, but I wanted to include it anyway.
dan_blagutCommented:
Hello

As is writen in the article, that user name/password is used to register the DHCP clients in the DNS. Anyway, starting with Windows 2K all DHCP clients are capable of registering itself, unless you didn't configure your DNS server otherways. So if you want to put something there you need to put an account with DNS write/update permission.

Dan
james_axtonAuthor Commented:
dan, I can certainly add an account that meets that criteria.  I guess I'm trying to understand two things:

1) Why I am getting the 1056 error when I start the server
2) Will changing the account "disturb" anything given that there is already information there (granted, there is only a password entered with no username or domain).
dan_blagutCommented:
http://www.eventid.net/display.asp?eventid=1056&eventno=3841&source=DhcpServer&phase=1

Anyway as is sugested anytime DO a BACKUP before anything that can go wrong.

Dan
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