My MBL only goes sleep when I turn off the Twonky media server, I have enable all other function, including SSH and FTP, remote access. Also my MBL drive is mapped on my Windows 7 PC and it goes to sleep even if I'm using the PC, but the main reason i bought the NAS was because the DLNA streaming capabilities, so this is not working for me.
Only the original firmware 1.5.? worked ok, but the remote access was slow and buggy, then they changed to WD2GO, the remote acces worked much better but they screw something and the MBL does not goes to sleep.
A Couple of months ago, I receive a WD survey about my satisfaction and possible recommendation of the MBL drive, I rank t it high, but now i'm disapointed of this device so i'm not recommend it anymore.
Please fix this sleep issue soon.