Remotely shutdown Windows XP workstations

[Emyeu]

Example:
3 machines host names & TCP/IP (DHCP):
B532-06 - IP: 10.1.1.1 Subnet Mask: 255.255.252.0
B532-07 - IP: 10.1.1.2 Subnet Mask: 255.255.252.0
B532-08 - IP: 10.1.1.3 Subnet Mask: 255.255.252.0

Server (Static), IP: 10.1.2.1 Subnet Mask: 255.255.255.0

Ping all 3 machines hostname in server -- connectivity okay.

Execute shudown command to the above workstations from server shown error as
follow,

C:\>shutdown /s /m \\B532-06
B532-06: The entered computer name is not valid. Check the name and then try
again.

When execute the above command from the workstaion and remotely shutdown
another workstation, it has no problem!
Could it be the cause of difference Subnet Mask? Any resolution?

 

[Pegasus \(MVP\)]

Example:
3 machines host names & TCP/IP (DHCP):
B532-06 - IP: 10.1.1.1 Subnet Mask: 255.255.252.0
B532-07 - IP: 10.1.1.2 Subnet Mask: 255.255.252.0
B532-08 - IP: 10.1.1.3 Subnet Mask: 255.255.252.0

Server (Static), IP: 10.1.2.1 Subnet Mask: 255.255.255.0

Ping all 3 machines hostname in server -- connectivity okay.

Execute shudown command to the above workstations from server shown error as
follow,

C:\>shutdown /s /m \\B532-06
B532-06: The entered computer name is not valid. Check the name and then try
again.

When execute the above command from the workstaion and remotely shutdown
another workstation, it has no problem!
Could it be the cause of difference Subnet Mask? Any resolution?

Try shutting it down by IP address rather than by NetBIOS name.

 

[Emyeu]

Tried by shutting down by IP address. Not working. Same problem.

 

[Emyeu]

I discovered something!
I don't think it is due to difference Subnet Mask issue.
I tried remotely shutdown another machine in difference VLAN but same Subnet
Mask, some model of the machines was unable to shutdown.It works fine when
remotely shutdown from machine with same VLAN.

Anyone has any ideal?