Getting 9093 Errors on a new PTHD 12 Native System

[JB Retro City]

Hi there,

We're running Pro Tools HD 12 Native Pcie on a newly refurbished Mac Pro 12 Core 3.33 Ghz with 32 Gigs of Ram. We're on El Capitan and the PT software is a fresh install fully updated. Converters are a Lynx Aurora 16 (firmware updated) with a Digi 96i/o. We've had the system up and running for about a week.

Overall its great, very powerful rig, except we've been randomly getting a "9093" error code. It happens most often during recording, though sometimes during playback. It happens at all buffer rates and using any configuration of the converters(Aurora alone, 96 clocked to it, external BLA clock). Sometimes we'll get it once in a 5 hour session. Sometimes we'll get it 2-4 times a session.

We're coming from a PTHD 3 Accel system that was so rock solid for tracking, literally don't remember the last time it dropped out. Its really bumming me out that we did this whole upgrade and we're having this problem. Especially because we rent the studio out to outside engineers so it has to run solid. Cant expect outside guys to jump through hoops to get the system running properly.

Can anybody shed some light on how to resolve this? It would be super-ultra-greatly appreciated.