PortServer TS 2 seems to slow down host computer (output computer) to the point it can not be used. We have the server reading the serial output off a windows computer serial port, then sending it over the network to a different PC using real port software. This happens a few days after it has been working and the port server has been left plugged in. We just defaulted the unit and ran updates, and we still have the same issue, and we are using real port on the other end it, that server is fine the computer getting the serial data. This happen with two different host computers sending data, We are not using a modem, just a serial out put at 8n1 9600 no flow control.