I'm having problem with a USB handheld barcode scanner. It lose connection to computer (disappears from Device Manager) several times / day and the solution is to disconnect/reconnect the USB cable. I tried to connect an external USB-hub and connect the scanner to the hub and since then the problem has only occured once in two days.
My question is: Can I from this result rule out problems with the USB controler and focus on the scanner? Does the external hub only work as an extension or does the external hub work as separate controller?
I'm not asking you to solve my problems with the scanner (although it would be nice), I'm only trying to understand the functionality of an external USB-hub.