Unplug the dongle and try a different USB port. Avoid using USB hubs; plug the device directly into the motherboard ports (usually on the back of a desktop).
Troubleshooting the "Security Device Not Found" Error in Wilcom 2006 security device not found wilcom 2006
For long-time embroidery professionals, remains a reliable workhorse. However, one of the most frustrating hurdles users face is the dreaded "Security Device Not Found" error. This message typically indicates that the software cannot communicate with the physical USB dongle (the security device) required to verify your license. Unplug the dongle and try a different USB port