Thanks for your help. I did what you suggested but found the problems. It turns out the pixels are so small in the ASI183MC they just need more light to work after trying this and trying that I turned up the exposure time, a lot, and voila. Plate solve worked just fine and then I could get good images. Also I learned how to use the focus module better.

Related, it seems the stellermate works with two bars of wifi signal but is more stable with three bars (I moved my router back closer to my mount).
So 40mb files are not a problem over wifi. Nice