Enable remote WMI

http://www.poweradmin.com/help/enableWMI.aspx

A summary:

  1. Administrative Tools -> Computer Management.
  2. Expand ‘Services and Applications’
  3. Right click for Properties on ‘WMI Control’
  4. Select the Security tab
  5. Press the Security button
  6. Enable Remote for the user/group that will be requesting WMI data.