I have the A2 version of this adapter which used to work without a hitch but since I upgraded yesterday the firmware on the WD works only intermittently. It seems to be related to the WD going into "sleep" mode - whatever I do subsequently I can't persuade the WD to wake up the adapter. It corrected itself once but at the moment I'm having no joy at all.
I don't know if it's related but I noticed that a normal USB stick which is plugged into the WD is not recognized when the WD is turned on - I must insert it only after the WD is up and running. Is there a problem now in the HD with handling USB devices ?