I have a 44VSL running on iMAC 10.10.5. I'm also using Logic Pro 10.2.4 and Studio One. Months ago my interface was working perfectly and now, not at all! The USB Sync light flashes (Red) and the 48V light (Blue) no longer comes on when I power up. I've tried numerous approaches, including rebooting, and can't bring the interface up.
Tell me what to try next or which driver is needed to bring up my interface?