APM 2.8 COM port

Hi, I have READ literally all the trends and non of them seems to be my case.
I have downloaded the lastest firmware (mission planner) for my apm 2.8 and then I connected it to my laptop with a usb lead, then there’s a red light under the ‘USB’ sign and there isnt any COM options on the top right hand side on the mission planner.
is there any way to check if my arducopter is broken or is it the software probelm? Tried device manager there’s nothing…

Try with other USB cable

The same happened to me and it was the USB cable, change it and it is not very long.