Plug the dongle into a completely different computer. If the computer acknowledges new hardware being inserted (even if the software isn't installed), the dongle itself is functional. If it remains completely dead on multiple machines, the hardware key may be physically damaged and require a vendor replacement. 2. Restart and Verify the License Services

Most modern security dongles have a built-in LED indicator. If the light is completely off when plugged in, the device is not receiving power.

Follow these troubleshooting steps in order. Start with the simplest fixes and move to more advanced solutions.

Antivirus or firewall software may be blocking the dongle's communication service. Windows Updates: