Hi @DavidShaer ,
You are likely seeing this issue due to insufficient power. The USB3 hub you are using is powered by 5V/4A power supply, which is likely at the limit of supplying power to 3 cameras.
While average power usage is around 5w for these cameras, there are random spikes of 2w (so up to 7w). Maybe once every hour all 3 of the cameras have this power spike at the exact same time, hub can't provide enough current, and cameras (maybe only one) brownout.
Have you already tried:
- Using a different (more powerful) usb3 hub?
- Connecting 1 or 2 cameras directly to the computer, instead of all via usb3 hub?