I had similar issues with one of these USB-C hubs (not sure if it was Satechi or just a similar PCB inside) - just shutting the lid of my laptop was enough to cause it to start going nuts but only after the Mac actually stopped talking to the hub at all. That was a fun one to figure out, I'd lose internet some small period of time (but not always the same amount) after switching from my work Mac to my PC, both hardwired.