Access Sentinel Key Code
When ordering additional licenses, you need to provide Sentinel key codes for all mobile machines. There are two methods to locate these key codes:
From the Start menu, select ArcGIS > License Manager > Display Hardware Key Status. A message box similar to the example shown below is displayed. The Sentinel key code is highlighted by the red box in the example below.
On the back of the machine, look for the key code printed on one side of the Sentinel key.
You can install a Sentinel key on a machine that previously accessed a license on a separate license server. In this case, if you need to access the local license (rather than the license server), you must use Desktop Administrator to point to the local license.