I have 2 Android TV devices, firstly a Shield for the TV room and since I enjoyed it so much I got a Mi Box for the living room. I can cast from anytime and anywhere to my Shield, it always appears in the "Cast To" options even when I turn it off, enabling an elaborate auto turning on of the TV too.

However, I just can't seem to find the Mi Box on the selections when it's asleep. I have to manually turn it on/wake it up to be able to cast to it. Anyone having the same problem? Is this "normal" for the Mi Box?