I had a similar problem with my audiofire8. It would show up in the DSP window, but where it shows the input channel and output channels selected, it just said OFF, and no audio was going in or out. I would select a different driver, then reselect my audiofire8 driver, and then the ins and outs would display properly, and everything would work fine.
I also had to download the older drivers for my interface, as the newer ones werent working at all for me. I know this prolly doesnt help but good luck.