Waking Computer from Sleep - Windows 10

I have reinstalled Windows, and something has changed. When playing music or watching videos over my network, my computer goes to sleep. This didn't use to happen. As well, I can't wake up my computer from Serviigo. What am I missing?

[Meelis]

I have reinstalled Windows, and something has changed. When playing music or watching videos over my network, my computer goes to sleep. This didn't use to happen. As well, I can't wake up my computer from Serviigo. What am I missing?

Change your Power settings from Control Panel.
For wake up over lan use WOL settings from ethernet adapter settings.