[Samba 3.0.2] rpcclient shutdowninit fails with Win2k3 Srv

[Karlheinz Blank]

Hi, 
 I tried to remotely shutdown a Win2k3 domain controller using the commandline
(it works with a WinXP SP1 client - but not with the Win2k3 domain controller)
rpcclient -A /tmp/A.txt -c 'shutdowninit' -d 3 192.168.0.222. 
Debug message: 
Connecting to 192.168.0.222 at port 445
Doing spnego session setup (blob length=114)
got OID=1 2 840 48018 1 2 2
got OID=1 2 840 113554 1 2 2
got OID=1 2 840 113554 1 2 2 3
got OID=1 3 6 1 4 1 311 2 2 10
got principal=friend$@LALA.LOCAL
Got challenge flags:
Got NTLMSSP neg_flags=0x62890215
NTLMSSP: Set final flags:
Got NTLMSSP neg_flags=0x60080215
NTLMSSP Sign/Seal - Initialising with flags:
Got NTLMSSP neg_flags=0x60080215
lsa_io_sec_qos: length c does not match size 8
result was NT code 0x000004f7
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Any hints? 

Thanks & best regards,
Karlheinz