I have updated my iphone to ios 8.3 and since doing that am unable to wake up devices, I can shut devices down okay, I can wake up the same devices on an Android device fine.

I have also uninstalled the iphone client software and reinstalled it and it still does not work.

Is this a known issue?

This is indeed an issue that has been rectified and an update has been submitted to the AppStore for approval. 

Update: the new iOS app has been released, can you please test and let us know? 

 

Thanks