Hi, I am not sure you solved this, but I have the same problem on a mac, the timefactor is only working via MIDI, usb is not working no more.

Any tips are welcome. swoftware is up-to-date and also the H9…

Could you open up the Audio MIDI Setup app on the Mac and see if your TimeFactor is appearing there as a MIDI device?

There are some other trouble shooting tips in the H9 Control manual:

https://www.eventideaudio.com/support/downloads/h9-control-manual

I am attaching a Screenshot, looks fine as my both factors are grayed out…

I have changed cables, factory restored, upgrade al software updates…

Any tip or help is welcome!!! It is very unconfortable connect via MIDI… USB was great