I just got an used rpi 3b and I manage to follow a tutorial to get all my attached devices on a hub, (4 devices) with 1 additional port for the keystep. Everything sync fine and I’m able to send and receive messages to the different devices. Then I change the port and notice that the hub is not detected on the other ports, only 1 of the ports seems to detect the hub. This is strange.
So I was wondering if there is a way to ‘turn on’ or off a usb port? Or is it a faulty rpi that I’ve acquired?