In this article we explain why your license USB dongle may not be recognized by your computer and how to resolve this problem.

Before You Start

• A dongle is a serialized hardware key attached to a USB port on a computer. 
• A dongle is used to limit or lock software access to whomever has the dongle attached to their system through the associated license file.
• Use of a dongle based license require three components:
  • The physical dongle attached to a USB port.
  • The proper dongle driver installed on the computer.
  • A license file that matches the host ID on the dongle.
• When the computer successfully recognizes the dongle, a red light will illuminate on the key.
  

Cause

• Your dongle driver may be out of date, an incorrect version, or missing.
• Your dongle may be deprecated and need replacing.

Steps to Resolve

• Update your dongle driver.  You should always download the latest version from the GEOSLOPE website:
  Drivers and Utilities
• If you suspect your dongle may need replacement, refer to this article:
  Retired USB Dongles