Adding my voice to the chorus. I'm also experiencing random USB disconnects/reconnects of the Commander Pro, which is connected to a USB header on my Asus Prime X570-Pro motherboard. Full PC specs under my username.
I also have 6x LL120 fans and 1x Node Pro connected to the Commander Pro, and 1x Corsair H150i AIO connected to another USB header on the motherboard (and does not experience random USB disconnects/reconnects).
I've unchecked the box allows Windows to put the USB port to sleep (as per an earlier suggestion) and that didn't help.
Edit: I also experienced the issue mentioned by others here that the Corsair H150i AIO would not show up in iCue when connected to the Commander Pro's USB port. I had to connect the AIO directly to the motherboard instead.
