I cannot wake up my pc from wake it!

[pablochere]

I usually wake up my pc from my laptop or my tablet (via LAN). I installed wake it for doing that from my BQ Aquaris 4.5 but i had no success. I added MAC, the port and selected "Send as broadcast packet". The app aparently send a magic packet to wake up the computer, but nothing happens. Maybe I am doing something wrong, but I don't know what.

Thanks in advance.

[roydenyates]

Equally, sending to a WAN address that works with gWakeOnLan fails with an error "Unable to send a message". Meizu MX4.