Before changing any software settings, ensure the physical USB device and port are working correctly.
Security software is mistakenly blocking the dongle's background services.
If you can tell me (e.g., SolidWorks, QuickBooks) and what kind of dongle it is (e.g., green key, silver key), I can offer more specific, targeted instructions.
If you are trying to access the software via a Remote Desktop connection or running it inside a Virtual Machine (VM), standard USB communication is often blocked by default as a anti-piracy measure. Before changing any software settings, ensure the physical
Scroll down to or look for a dedicated category like Sentinel Hardware Keys .
Plug the dongle into a different computer. You do not need to install the full software; just check if Windows or macOS detects a new USB device. If the alternative PC gives an "Unrecognized USB Device" error, the dongle may be physically damaged. Step 2: Reinstall or Update Dongle Drivers
Different software packages use different dongle systems. Here are common ones: If you are trying to access the software
When you see this error, it means the software's security layer queried your computer’s USB ports and failed to receive the specific encrypted handshake required to launch. This breakdown happens due to one of four reasons:
– If you're using a USB 3.0 port (blue interior), try a USB 2.0 port (black interior). Some older dongles have compatibility issues with newer USB standards.
Most USB security keys have an LED light. If the light is off, the dongle is not receiving power. If the light is on, the computer should be recognizing it. You do not need to install the full
If the USB dongle suffered physical damage or internal component failure, the vendor will deactivate your old license code and ship you a replacement hardware key.
Plug the dongle into another computer. If the computer makes a connection sound or the dongle lights up, the hardware is fine, and the issue lies with your original machine. 2. Reinstall or Update Dongle Drivers