when I try to turn on my pc by wake-on-lan, an error occurred


At first I do all then settings on PC, I turn on wake-on-lan function , and set public address and set port to 9, is it right? and then turn off my PC, try to turn on my pc  by wake-on-lan on app(ios), but there is an error occurred, the message is like this:"operating faild, internal error"

I'm not sure if I describe  the problem clearly...Looking forward to your help ,thanks!