Min server låser

Hej.
Nu har min server har låset i de sidste pr måneder uden nogle grund. Jeg mistænker måske at der er en fejl på min harddisk eller bare styresystem er fucket. For jeg har skrifte WAN IP et par gang nu, og da jeg havde nogle Windows XP maskiner som brugt min DNS så stoppede DNS servicen med at kører, hvis de så ikke brugt min DNS så stoppede den ik, men det sidste min server har skrevet i Eventlogen er så det her.

Hvad beskyder det lige?

Event Type:    Error
Event Source:    NETLOGON
Event Category:    None
Event ID:    5774
Date:        09-07-2004
Time:        06:14:39
User:        N/A
Computer:    SERVER
Description:
The dynamic registration of the DNS record '5d4f9c78-71b6-478d-9a7f-ae69672abe89._msdcs.ameq.dk. 600 IN CNAME server.ameq.dk.' failed on the following DNS server: 

DNS server IP address: 80.63.205.140
Returned Response Code (RCODE): 5
Returned Status Code: 9017 

For computers and users to locate this domain controller, this record must be registered in DNS. 

USER ACTION 
Determine what might have caused this failure, resolve the problem, and initiate registration of the DNS records by the domain controller. To determine what might have caused this failure, run DCDiag.exe. You can find this program on the Windows Server 2003 installation CD in Support\Tools\support.cab. To learn more about  DCDiag.exe, see Help and Support Center. To initiate registration of the DNS records by  this domain controller, run 'nltest.exe /dsregdns' from the command prompt on the domain  controller or restart Net Logon service. Nltest.exe is available in the Microsoft Windows  Server Resource Kit CD.
  Or, you can manually add this record to DNS, but it is not recommended. 

ADDITIONAL DATA
Error Value: DNS bad key.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 05 00                    ..