Mbox Pro 3 not working with MacOS Sierra

[postscriptumch]

Originally Posted by Dj-Ike

What 'new' drivers. 3.1.5 has been up there since 2016. Am I missing something?

Hey,

By "new" I meant "latest" as in the December 22nd release. I've had the problem for a while but since I had purchased ProTools in perpetual mode, I hadn't paid the yearly "support/upgrade subscription" so I put the MBox aside for months and months until finally deciding to cough up the money to get back to producing...

Everything worked fine under El Capitan with ProTools 12.3, when I upgraded to Sierra I started having problems and up to now support hasn't been able to help me yet. My thunderbolt port clearly works with the Ethernet adaptor and Monitor adaptor, so I'm guessing the problem isn't on my Macs side, but I'm getting an almost daily reply from support with different things to try out.

I'm hesitating on just buying a USB MBox because having to use a Firewire 400 to 800 converter plugged to a Firewire 800 to Thunderbolt converter is already ridiculous enough, IMO. Why can't they develop a Firewire 400 to Thunderbolt converter so I can have 1 cable and not 3 cables? They want me to buy a spare of each just to try and see if the problem's coming from one of them... With all that money being spent, I would've almost been better off repurchasing an MBox Pro w/ ProTools without paying 300$ for the support/upgrade sub + eventual cables and what not...

I'll keep everyone posted if they find a proper solution because I've seen a lot of posts around about people having this without ever having a decent solution..

Cheers