Hi Robin- Mystery solved and with good results. ZWO made a good case that the problem was local. So having a new 3m active USB 3 cable from Amazon in hand I sat down to swap out everything and discovered two problems. One USB 3 cable never subjected to rough or outdoor use had a small hole in the ja...
I have three ZWO cameras, a USB 2 120 mono, a USB 3 290 mono and a USB 3 224 cooled. The 120 is a the guide camera. Al three cameras are on the same mount and feed the same Win 10 Home 64 bit PC. Until recently all three cameras could be connected and used simultaneously, the 120 with PHD2 and the o...