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Error: The Sntnlusb service failed to start

Error Message

The following error is displayed or is found in the event log after installing ArcGIS or the ArcGIS license manager:

"The Sntnlusb service failed to start due to the following error: The service can not be started, either because it is disabled or because it has no enabled devices associated with it."

Cause

A USB hardware key driver is installed with the license manager or ArcGIS. If not using a USB hardware key, the driver will display this error. The license manager will continue to run properly.

Solution or Workaround

Manually remove the Sntnlusb service from the registry.

Warning:
WARNING: This article contains instructions to make specific changes to essential parts of your operating system. If these specific changes are not done correctly, it may cause serious problems to your computer operating system and files. First, ESRI recommends that you make a complete backup of your system, including the registry, before implementing any of the specific changes. It is highly recommended that you consult with your IT/MIS department, or other qualified computer systems professional before proceeding. ESRI cannot guarantee that you can solve problems that result from incorrect use of the Registry Editor utility. Use the Registry Editor utility at your own risk. Note: your operating system and any subsequent service packs may effect these instructions. These instructions are subject to change without notice.


Note:
If using ArcView or ArcEditor Single-Use, remove the ESRI License Manager and Sentinel System Driver from Add/Remove programs; it is not used.
  1. Click Start > Run, and type 'regedit' (no quotes).
  2. Navigate to: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services.
  3. Locate and select Sntnlusb. Click Delete.
  4. Restart the computer to engage the new settings.