Hello Tinus,
I have windows server 2012 r2 essentials role and windows 8.1 clients. As I have WSUS on the server I would like to have the clients stay on one hour or so in the night to get the updates. In lights out I set wake at 300AM and this happens but after 4 or 5 minutes or so the client goes to sleep while i have in the power settings that standby should not occur for one hour. Is lights out sending a standby signal?
best Tom