When I use the restart manger option (-g) with shutdown.exe I get a RPC error: C:\>shutdown -m \\win7 -g -f -t 5 win7: The RPC server is unavailable.(1722) But with the old known restart or shutdown switch (-r -s) all works correctly. If I disable the domain firewall it works as expected with the g switch. It seems that a new no-predefined firewall rule is nessary. Hope someone knows missing firewall rule.