I retrofited to the 1.16.13 firmware, and now the shares work fine !!!
I can access the local usb disk of the box from my pc, and I can access the shared folders of my PC from the box !
So, it seems that the 2.01.86 firmware was a New Year joke for the wdtv live new owners !
Thanks to the users of this forum for having reported the problem.
Waiting for the next good update of the firmware, but I won’t install anymore the 2.01.86.
