Time server

Hvordan sætter man sin server op til, at hente tiden fra TDC eks.vis.
Jeg har lavet den klassiske:Net use sntp:bla bla bla og virker også fra dos prompt, men min event log laver en del fejlmeddelser:

Event Type:    Warning
Event Source:    W32Time
Event Category:    None
Event ID:    47
Date:        13-03-2009
Time:        07:58:38
User:        N/A
Computer:    SERVER
Description:
Time Provider NtpClient: No valid response has been received from  manually configured peer ntp.inet.tele.dk after 8 attempts to contact it. This peer will be discarded as a time source and NtpClient will attempt to discover a new peer  with this DNS name. 

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

Event Type:    Error
Event Source:    W32Time
Event Category:    None
Event ID:    29
Date:        13-03-2009
Time:        07:58:38
User:        N/A
Computer:    SERVER
Description:
The time provider NtpClient is configured to acquire time from one or more time sources, however none of the sources are currently accessible.  No attempt to contact a source will be made for 30 minutes. NtpClient has no source of accurate time.

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

Hvad gør jeg forkert?!