I have only used Windows 7 64-bit for my testing. I usually connect through a KVM (with USB) switch, that is connected to a powered hub (which does not have enough power to drive the Galileo). The rather unique hardware setup might be causing the problem?
There are two different failure modes I have seen with the COM port:
- Windows can correctly see the device (meaning when you unplug the USB, the device goes away, and when you re-plug in the device, it shows up in the Device Manager) but no matter what you do, the IDE does not ever recognize the COM port.
- This can be fixed by restarting the Host system, or by changing to another USB port (which will enumerate a different COM port).
- Neither Windows nor the IDE will detect when the USB is disconnected.
- I have only seen this once, and I am not sure how it happened.
- I was able to fix it by uninstalling the COM device driver, and then scanning for hardware changes (which will re-install the driver)