[jeremyroberts]

Another solution (and I have been having a similar issue intermittently for years) is to get in the habit of launching AMS BEFORE pt or any other music related application. Then do a quick midi test in AMS, if midi is coming and going, then go ahead and launch PT. Let's put it another way -- if AMS can't see midi, then PT surely can't. By doing it this way it ensures that the OS sees midi and it eliminates the headaches of "is it on" when you use mid in PT. Ideal? No. A sure thing? Yes. Try it

PS -- my interface is a Digi MIDI i/o, hardwired to a G5 2.7DP 10.4.8 - 20' USB cable. No hub. Not powered.

PPS -- once I do this, I never lose MIDI.