I'm having bad luck.


after a power cycle I`ve got this error in one of the boards (all the 4 COM's)
Do not have user privileges required to open \\.\COMXX

I un installed coms ports and turn off the boards?  but it still persists could it be a usb issue?

Edit:After reseting my pc now have two boards with this error ?¿?¿  both boards have been worked fine before.