I tried to use remote shutdown (shutdown /i) to turn off one of my upstairs computers that I did not feel like walking to, but when I started it, I got an error saying "Access is denied. (5)". I made sure to follow the steps correctly, I opened CMD as administrator, typed "shutdown /i" hit enter, typed my computer's IP in the popup-window, selected "Application: Maintenance (Planned)" added my comment, and clicked okay. But then I was confronted with the error. Is there a way to enter the "upstairs computer"'s settings and allow the "downstairs computer" to access it?