One of our workstations all of a sudden lost network/internet connection. There was not a connection between the port on the switch to the computer and the workstation said "DNS not responding". We tried plugging into other ports on the switch but had the same problem. The catch is that no other workstation plugged in to this switch had lost network connectivity. It may be that all of the open ports went bad at the same time, but we are thinking perhaps the switch is not allowing any new connections to be made. Anyone had any issues or tips on this?