User's Manual

UM-0825 28
6.2. Device Unknown legend in driver.
If you cannot connect to the Signal Booster, and there’s no new COM port installed in your system
after plugging the USB connector to the PC, go to the device manager list.
If there’s a device named as ‘Device Unknown’ that appears and disappears every time you
connect the USB to the Signal Booster, this can be due to problems in the USB cable. Replace it
and try again.