High Sierra 10.13.2 cannot find my audio device

Well, downgrade is the result. Actually, it contains formatting the hard drive and reinstalling macOS.

Since I don't have any backups before 10.13.2, so I need to copy out all my important files and do the reinstall thing.

In this case, I just bought a new audio interface.

Hi all,

From what little research I have done online and on my own between two systems, side-by-side, one with El Capitan and the other with 10.13.2 -

Each system recognizes the Fast Track Pro in System Information (my system is in Czech language, if anyone wonders 🙂 )):

I also noted while viewing the "Logs" section of System Information that the following log files would be updated when I turn the Fast Track Pro on or off while connected to El Capitan:

IORegistry contents (/usr/sbin/ioreg -lxw550)

NVRAM contents (/usr/sbin/nvram -xp)

Power Management (/usr/bin/pmset -g log)

So, I may do a little more digging into those logs in El Capitan and High Sierra to see if I can unearth any information there as to what exactly - or at least, more specifically - is going on...

ok, maybe the steps written are a bit confusing, i.e. you have to change the automatically installed extensions with the one I patched... that's all! There are two of them, one in the OS/System/Library/Extensions and one in the OS/Library/Extensions - change the installed fastrack-extensions with the ones in the called "exchange Folder"..... to avoid to have a prefpane and exts of the mbox-install just delete these... only these! ;-) - good luck! M.

oky.... in effect its simple; install the original drivers, both; mbox and ftpro and exchange these in both extensions-folders (HD System Library/Extensions & HD Library/Extensions) with the ones I patched.... but be aware I am on Sierra not on HighSierra!!! Good luck!! M.

I have the same problem on a 2009 Mac Pro. My Fast Track Pro was working on 10.13 and 10.13.1, but not in 10.13.2.

Have the same issue on MacBook Pro (15-inch, 2016) after 10.13.12 on Dec-8. Tried SMC reset - didn't help.

Will try to update to 10.13.3 beta

I tried this, but when I cam to install it on my Mac Mini is said "cannot install on this SSD drive" for some reason (it has over 100Gb free space on there). Probably due to the previous "upgrade" to 10.13.2

I too , would like a solution for my M-Audio Fast Track Pro USB external soundcard not being recognised!! Urgent!!!

Temporarily disabling system integrity protection to replace system files is the easy part. But please work on a clone or have good backups. Let us know how it went.

https://developer.apple.com/library/content/documentation/Security/Conceptual/Sy stem_Integrity_Protection_Guide/ConfiguringSystemIntegrityProtection/Configuring SystemIntegrityProtection.html

Good luck :)

It seems there were no solution to this problem other than downgrading so far.

Did Apple noticed this problem? Does Apple intended to not support FastTrack Pro anymore?

Should I buy a new audio interface or just waiting for next update?

If it still not working in 10.13.3, probably I should get a new one.

Since 10.13.3 Public Beta does not support FastTrack Pro as mentioned by marsneedsmars, I already bought a new audio interface, plus Cubase -- the DAW on Windows, not on Mac.

Thanks for the "compatibility improvement", Apple.

I gave up and bought a Focusrite Scarlett Solo instead. It replaced everything wire by wire and works fine. It was hard to find something that has RCA outputs to headphone amp and monitors. But this one gets the job done. And it doesn’t need a power brick for 48 volt mics. High power USB port is enough. Apparently has more sensitive instrument inputs too.

https://us.focusrite.com/usb-audio-interfaces/scarlett-solo

Hi @dougjam2

1. You should contact Apple Support to see if there any solution there. At least, let them know about this problem.

2. Then you may want to contact Avid Company Support, who made M-Audio Fast Track, see if they have solution there. At least let them know about this problem.

3. Then, buy a new audio interface other than M-Audio.

I tried this for several reboots and each time I got to the point of seeing the "allow" button, it disappeared after a second or two, before I could unlock it and click on "allow". Very frustrating!

As I said before, I have restored my system to the previous OS (Yosemite) using Time Machine and it is a relief to have it functioning again.

One of last updates from Apple make this !@#$. I arrived in studio with my band to play, open my project and boom .... what? Where is my Fast Track Pro ? Try all drivers without success. Remove all drivers and anything about maudio in my system files. No No no.. so frustrating. Macbook Pro 13 Early 2015, Mac OSX 10.13.2 ... device not connected.

It's clearly a Apple Issue (I believe), because it's working perfectly some weeks ago.

😟