Thank you.
The error message " Security device not found. Please attach your dongle and restart the software Thank you
Troubleshooting the "Security Device Not Found" Error If you are staring at a popup that says you’re likely dealing with a specialized piece of hardware-locked software. Whether you are using CAD tools, video editing suites, or industrial controllers, this error is a classic "handshake" failure between your computer and your physical security key (dongle). video editing suites
drivers. If you recently updated your OS, the old driver might be blocked. You can often download the latest Sentinel LDK Run-time to fix communication issues. Check Windows Services services.msc , and hit Enter. Sentinel LDK License Manager HASP Loader or industrial controllers