Can authenticate to computer, but cannot connect to registry

[JustScriptIt]

I am creating a script such that it deletes a registry value.

First, I make sure I can ping it.
Then, I make sure I can connect to registry value.

Out of 20 computers, 9 of them are pingable, and two of them can connect to registry value.

However, out of curiosity, I rdp'd into one of the computers whose registry I cannot access. Turns out, I can authenticate to them.

How is it possible to authenticate to a computer, yet not access the registry object?

Here is main part of script

If Ping(strComputer) then
      wscript.echo "We can ping " & strComputer & " resolving to " & strName
  
   'Can we connect to registry?
    On Error Resume Next

    Set oReg=GetObject( _
    "winmgmts:{impersonationLevel=impersonate}!\\" &_
     strComputer & "\root\default:StdRegProv")


   If (Err.Number <> 0) Then
	HandleError()
	strError = "Cannot connect to registry"
    Else
       wscript.echo "No registry error " & strComputer
       wscript.echo
    End If 'corresponds with If (Err.Number <> 0)




  End if 'corresponds with If Ping

and here is error handling code

Sub HandleError()
     On Error Goto 0
     Err.Clear 
     bErrorFound = True
End Sub

Please advise? Or, is there another way to determine whether we can authenticate to a cmmputer.

Thanks!

 

[JustScriptIt]

By the way

1. I am able to RDP into the remote machine

2. When I open registry editor on my machine, I can connect to the machine.

Perhaps this is a privilige issue? Can you guide?