My Logitech G500 randomly disconnects and reconnects for some time now, I think it may be related to some Windows 7 update, but not sure. I'm aware this question has been asked some other times before, but none of the answers I saw helped me.
I tried it in another computer and this error doesn't happen, so I don't think it's hardware related. I've also seen that it could be related to "Allow the computer to turn off this device to save power" option in the device properties, but unfortunately, I don't have the power management tab when it comes to the devices related to the mouse (composite usb device + human interface device *2).
Also tried uninstalling them, and reinstalling when restarting, to see if there was some corruption in the windows Registry, but it seems that everything installed is required, and the problem keeps happening.