Mbox Pro 3 not recognized on Sierra

[piedpiper]

Been using Protools for years using a BLA modded 002R and a 2011 iMac. I recently bought a used Mbox Pro 3 for my daughter and am trying to test it out for her with my girlfriend's 2015 MacBook Pro using the Firewire to Thunderbolt adapter and nothing here either. Running Sierra on both. Haven't dared to update to High Sierra. I have the latest drivers and Protools. Not showing up as connected. Is this definitely a driver thing? Is there no option but to wait for Avid to fix it with new drivers? Anyone have luck with this?

[reichman]

On my home system, MBox Pro 3 working 100% with High Sierra 10.13.2. This is a supported config. Not sure why it wouldn't be seen.

[piedpiper]

Originally Posted by reichman

On my home system, MBox Pro 3 working 100% with High Sierra 10.13.2. This is a supported config. Not sure why it wouldn't be seen.

What computer are you using? And are you using a firewire to thunderbolt adapter?

[reichman]

Originally Posted by piedpiper

What computer are you using? And are you using a firewire to thunderbolt adapter?

Mac Pro 6,1. Thunderbolt 2 to Firewire adapter.

Firewire cables can be flaky. Try a different cable, and do whatever you can to get a FW800>400 cable. The 800>400 adapters are a pain. Also make sure you have Mbox Pro app available to troubleshoot.

[arekhgr]

I have the same problem. :/

[Fadda]

Has anyone been able to sort this out? I’m having the same issue.

[eggbox]

I had the same problem but have finally found the solution after a lot of head scratching. Hopefully you did the same thing as me anyway and this fixes it for you.

I remembered when I installed the driver a pop up came up and in my haste to get things working (ironically) I didn't read it and clicked OK (In blue making you think you should press it) and carried on the installation. Anyway, that pop up was the critical part, you need to click to allow extensions by "Avid Technology Inc".

No matter how many times I uninstalled and reinstalled the Mbox Pro 1.3.5 driver I couldn't get the pop up to display and I couldn't see a way to manually add the extension exception.

This is how I fixed it.
1. Uninstall 1.3.5 driver
2. Install the incorrect Mbox (Not Pro) driver 1.2.13 but this time clicking 'Open Security Preferences' and adding the exception for extensions by "Avid Technology Inc".
3. Unistall 1.2.13
4. Install 1.3.5 driver again

The Mbox Pro now works!

I hope this helps.

[CharlotteMichele]

You are a GENIUS!!! Totally worked.