How can I get unsecure Join to work ?

Hi guys,

I am trying to get unsecureJoin zu work. But it does not. The xml contains this code:

  <component name="Microsoft-Windows-UnattendedJoin" processorArchitecture="x86" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
			<Identification>
				<JoinWorkgroup></JoinWorkgroup>
				<JoinDomain>test</JoinDomain>
				<UnsecureJoin>true</UnsecureJoin>
			</Identification>
		</component>

This is the setupact.log entries in the unattendgc folder of the Windows\panther folder:

[unattendedjoin.exe] Unattended Join: Begin
[unattendedjoin.exe] Unattended Join: Loading input parameters...
[unattendedjoin.exe] Unattended Join: UnsecureJoin = [true]
[unattendedjoin.exe] Unattended Join: MachinePassword = [secret not logged]
[unattendedjoin.exe] Unattended Join: JoinDomain = [test]
[unattendedjoin.exe] Unattended Join: JoinWorkgroup = []
[unattendedjoin.exe] Unattended Join: Domain = [NULL]
[unattendedjoin.exe] Unattended Join: Username = [NULL]
[unattendedjoin.exe] Unattended Join: Password = [secret not logged]
[unattendedjoin.exe] Unattended Join: MachineObjectOU = [NULL]
[unattendedjoin.exe] Unattended Join: DebugJoin = [NULL]
[unattendedjoin.exe] Unattended Join: DebugJoinOnlyOnThisError = [NULL]
[unattendedjoin.exe] Unattended Join: Checking that auto start services have started.
[unattendedjoin.exe] Unattended Join: Joining domain [test]...
[unattendedjoin.exe] Unattended Join: Calling DsGetDcName for test...
[unattendedjoin.exe] Unattended Join: DsGetDcName returned [dc1]
[unattendedjoin.exe] Unattended Join: Constructed domain parameter [test\dc1]
[unattendedjoin.exe] Unattended Join: NetJoinDomain attempt failed: 0x6fb, will retry in 5 seconds...
.....
.....
[unattendedjoin.exe] Unattended Join: NetJoinDomain failed error code is [1787]
[unattendedjoin.exe] Unattended Join: Unable to join; gdwError = 0x6fb
[unattendedjoin.exe] Unattended Join: Exit, returning 0x0

Is there something else I have to do to make this client join the domain unattendedly without having to specify username and password in the autounattend.xml ? I also tried creating a computer account in the computers OU in "AD Users and computers" first (but without specifying a GUID). This did not work either. The errorcodes in the log were a bit different but it still did not work.

Could you please help me out here ?

Thanks a lot for your help !

Alex