first i would ask your friend.
if that doesnt work unplug it and hold down the reset button for a long long time (like 2 min or so) then try if that doesnt work keep it plugged in and hold down the reset button very long
if that doesnt work please state your routers model name
if that doesnt work unplug it and hold down the reset button for a long long time (like 2 min or so) then try if that doesnt work keep it plugged in and hold down the reset button very long
if that doesnt work please state your routers model name