Can be fixed with an Apple thunderbolt(3) to Gigabit ethernet adapter, AFAIK

SwitchBack wroteCan be fixed with an Apple thunderbolt(3) to Gigabit ethernet adapter, AFAIK

Which is exactly what I thought I had. Apparently there are USB-C to ethernet adapters that never heard of Thunderbolt. Trip to Apple Store? Hmmm.

Peter

PreSonus wrote a Knowledge Base article on this subject. The ‘gigabit’ distinction on the Apple adapter is critical too, as I remembered it. It may even require stacking two Apple adapters (TB3 to TB2 and TB2 to Gigabit Ethernet). The article will tell you what’s needed.

Thinking of buying one of these just to have an AVB pathway in and out of the Mac. Kind of spendy though.

https://eshop.macsales.com/item/OWC/TB3ADP10GBE/?gclid=CjwKCAiAiML-BRAAEiwAuWVggldAWow6lXNnhjCtnv2YhA9RpXs7OVHfOdad6pIPdhG4DQdEUuAjoRoCcQcQAvD_BwE&gclsrc=aw.ds

Do make sure you can return it if it doesn’t work.

Apple makes their adapters identifiable by their computers, sometimes unlocking functionality third party adapters can’t. Don’t know if that’s the case with the gigabit ethernet adapter but it used to be with the firewire dongles. Something with tying it in with the core hardware...

I can now confirm that the Thunderbolt 3 10G Ethernet Adapter OWC sells opens the AVB pathway between a MacBook Pro 15,1 running Catalina and a Presonus 32R rack mixer, inputs and outputs.

HOWEVER:

The MacBook processor seems to be much more heavily stressed under AVB than under USB, which I find somewhat surprising. Also, the fan runs full out when the adapter is hooked up and AVB is enabled and Activity Monitor reports the coreaudiod process as "Not Responding" when AVB is running. Related, no doubt, to Apple's weird AVB implementation.

If any of you AVB/Mac geniuses can offer some wisdom on this I'm all ears.

Peter

Quick update: taking the 32R firmware from 3.2 to 3.4 fixed the "Not Responding" message, but the fan still runs full out. S1 reports 80% energy impact, nothing else really registers.