[Ask Otis]

I did a project last year, for about 3 months using the exact setup you describe , and in the exact manner you describe. I had the same exact problem you had, although usually it only happened once a day or less. The fix for me was to turn off the USD, while still in protools. PT would then say "lost communication with USD". Turn back on the USD and select it from peripherals and everything would be fine. Since we started using Beige G3 there have been no problems but we are also connected to the DigiSerial port. Not sure which one was the fix.