Error updating DC with WSUS

[karel]

I have a Domain controller which logs the following error in the event viewer.

Event Type: Error
Event Source: crypt32


Event Category: None
Event ID: 8
Date: 08/10/2006
Time: 08:49:04
User: N/A
Computer: CONTROLLER
Description:
Failed auto update retrieval of third-party root list sequence number from: <http://www.download.windowsupdate.com/msdownload/update/v3/static/trustedr/en/authrootseq.txt> with error: A connection with the server could not be established
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

I have Group Policies set up to update everyone's PC (Including the servers) automatically, which disables the feature of users updating their PC's themselves.

This error, however, is only on the server and with only one update (KB908981)

Any help will really be appreciated!

Karel