PTC MKS Toolkit Knowledge Base

Product:MKS Toolkit (All)
Category:General/Licensing/Sales/Technical/Knowledge Base/Activation

In the information sent to PTC, what precisely is used to uniquely identify a computer system (node)?

The following pieces of data are combined to create a unique node identifier:

  • CPU string
  • System volume GUID
  • Machine SID
  • Machine UUID (usually stripped out and ignored except under special circumstances)

In addition, the system’s MAC address(es) are also sent to PTC, but it is not used to identify the node at activation time. However, MAC addresses are used at runtime to validate similarity to the activated node . As a result, changing network cards may result in deactivation. In particular PTC recommends that every available network card be turned on at activation to avoid inadvertent deactivation when changing to a wireless or docking station LAN card that was disabled at the time of activation.