connection to a new PC

I just bought Microsoft's Surface Book (available from today in Europe), and it recognizes neither the H2o nor the Glo HD. I had no problem with my old ASUS, even after implementing Windows 10, but even after turning on/off both the PC and the devices, it doesn't work.
I've looked through the last few pages of this forum, but the connectivity problems seemed different.
I would be thankful for any suggestion.