Ok, so I feel like I'm about ready to punt.
Mewe Quieter 3. Nina, ZWO Cameras, Eq6-R, ASI EAF. ASTAP, PHD2. Everything connects in well and comes right up. I spend some time running some test images and then I get the ZWO Driver error can't download image err. Reset the computer, check the cables, fire NINA back up and everything is butterflies and unicorns again. Finish up my test images and turn on a quick test sequence (still new to NINA and learning), see image come in, go have dinner in the other room, and come back and I have the Driver Error again and NO images saved.
Remoting to the Mewe from my desktop or my laptop by the way. But that works fine.
So as I say, Im about ready to punt. If there was a good small desktop/laptop/tower with enough USB 3 ports I would cut my losses right now.
But if there's suggestions about what to do to get consistent results from the Mewe I'll be grateful.