[C#] User credentials error for local connections

[84Mark]

Can anyone tell me why my program thinks I am trying to make a local connection when I set the machine name value to a remote host (i.e. not localhost)

private void cmdGo_Click(object sender, System.EventArgs e)	{

	treeControl.Nodes.Clear();
	String machineName = txtMachineName.Text;

	if (machineName.CompareTo("localhost") == 0) {
 ?// do nothing with connection options as this is a local connection
	} else {
 ?objectConnection.Username = txtUsername.Text;
 ?objectConnection.Password = txtPassword.Text;
	}

	objectManagementScope = new ManagementScope("\\\\" + machineName, objectConnection);

	try {
 ?objectManagementScope.Connect();
	} 
	catch (System.Exception ex) {
 ?MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
	}
etc...

When the code reaches the ".Connect();" part I get this error message:

"User credentials cannot be used for local connections"

See the end of this message for details on invoking

just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************

System.Management.ManagementException: User credentials cannot be used for local connections

at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode)

at System.Management.ManagementScope.InitializeGuts()

at System.Management.ManagementScope.Initialize()

at System.Management.ManagementObjectSearcher.Initialize()

at System.Management.ManagementObjectSearcher.Get()

at WMI_Windows_App.frmMain.getDiskInfo() in c:\documents and settings\mark\my documents\visual studio projects\behind the minority report\main.cs:line 318

at WMI_Windows_App.frmMain.cmdGo_Click(Object sender, EventArgs e) in c:\documents and settings\mark\my documents\visual studio projects\behind the minority report\main.cs:line 269

at System.Windows.Forms.Control.OnClick(EventArgs e)

at System.Windows.Forms.Button.OnClick(EventArgs e)

at System.Windows.Forms.Button.PerformClick()

at System.Windows.Forms.Button.ProcessMnemonic(Char charCode)

at System.Windows.Forms.Control._ProcessMnemonic(Char charCode)

at System.Windows.Forms.ContainerControl.ProcessMnemonic(Char charCode)

at System.Windows.Forms.ContainerControl.ProcessDialogChar(Char charCode)

at System.Windows.Forms.Control.ProcessDialogChar(Char charCode)

at System.Windows.Forms.Control.ProcessDialogChar(Char charCode)

at System.Windows.Forms.Control.PreProcessMessage(Message& msg)

at System.Windows.Forms.ThreadContext.System.Windows.Forms.UnsafeNativeMethods+IMsoComponent.FPreTranslateMessage(MSG& msg)

[John Veteran]

Title edited

What are you typing in your txtMachineName field? Is it the name of your local machine? You're only comparing it against "localhost" when it could also be the name of the machine.

[azcodemonkey]

I think you need to specify the namespace you're connecting to. e.g. \\\<machine name>\\root\\cimv2