On some computers with Scheider software installed, it may happen that when connecting the USB key it is not recognized by Windows.
To solve it, the following steps must be carried out:
1) Device Management
2) Update the driver for Scheider Modem PLC USB (the one with the question mark and press the secondary button)
3) Browse my PC for drivers
4) Choose a list of computer drivers
5) Show the available hardware (the first option is usually the correct one)
6) NEXT....
And the Nirtec USB key should already be recognized