Hub connected to NetBotz USB port supports only one serial device

Issue:
Two serial devices connected to a NetBotz appliance via USB hub fail to communicate.

Product Line:
NetBotz

Environment:
Advanced View

Cause:
Each USB port on a NetBotz appliance supports only one serial device. Do not use a USB hub to connect more than one serial device to a port on a NetBotz appliance.

Resolution:
Connect no more than one serial device to a USB hub connected to a NetBotz appliance.