How do I wake up my computer from sleep mode remotely?

How do I wake up my computer from sleep mode remotely?
Remotely Wake Computer From Sleep – Establish a Remote Connection

Assign your computer a static IP.
Configure port forwarding in your router to pass Port 9 to your PC’s new static IP.
Turn on WOL (Wake on LAN) in your PC’s BIOS.
Configure your network adapter’s power settings in Windows to allow it to wake the PC.

Remotely Wake Computer From Sleep – Establish a Remote Connection
  1. Assign your computer a static IP.
  2. Configure port forwarding in your router to pass Port 9 to your PC’s new static IP.
  3. Turn on WOL (Wake on LAN) in your PC’s BIOS.
  4. Configure your network adapter’s power settings in Windows to allow it to wake the PC.