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Electronic Theatre Controls Inc

Reinstall ETCnomad Dongle Drivers


When launching the ETCnomad software, the [Primary] or [Backup] options do not appear, even with a dongle plugged into the device. Only [Offline] is available. The dongle may appear in Device Manager/System Information as "Sentinel HASP" but indicate that the driver is unrecognized or failed to install.


This was known to be a common issue with macOS 10.11 El Capitan and Eos versions prior to 2.3.2. However, it does sometimes occur with other operating systems and newer versions of Eos. Windows 11 security updates can break the Sentinel driver and necessitate a reinstall.


This issue can occur when updating to a newer OS version on both Windows and Mac. Changes in how the OS handles device drivers can sometimes cause the driver for the ETCnomad dongle to be unrecognized after the update. This can often be resolved by reinstalling the device driver via the procedure below.

  1. Uninstall Eos from the computer.
  2. Download the Sentinel USB driver installer.
    1. Installer for Windows: Sentinel HASP/LDK Windows GUI Runtime Installer 9.14
    2. Installer for Mac: Sentinel HASP/LDK Mac OS X Runtime GUI Installation 9.14
  3. Run the Sentinel driver installer as an administrator.
  4. Run the Eos installer as an administrator.
  5. Reboot your computer.
  6. Launch Eos.

If you now have the [Primary] and [Backup] options available, the issue is resolved. If you stil only have the option for [Offline], contact ETC technical support.