Was this issue resolved?
I can also confirm issues with two Asus EB1501. Neither can be controlled from orbiter. In particular I am also having strange shutdown issues, ie. on screen orbitor will state powering down, then cycle back to confirm shutdown.
Have checked and rechecked WoL etc settings are all enabled. Running 12.04lts with latest updates. Openelec installed on Hdd of both.
Hmm... so you are PXE booted as an MM but you are launching Openelec from the internal hard drive too? Have i understood you right? If that's the case then it may be that the powering down process is getting hung because of the locally launched software.