[Elecraft] KAT500 Remote Control

[DAVID INGEBRIGHT]

I have a KAT500  ATU that I want to remote control over the home network and over the internet when I'm at the winter QTH. I can run the 500 connected to my local laptop with the Eleraft-supplied usb cable. Now I'd like to run it remotely. Bought a Lantronix serial server  https://www.lantronix.com/products/uds2100/ and it looks like it will work. I have it running connected to the network and the KAT500 but the Elecraft utility wants to find a COM port! So how do I get it to look on the internet for the serial server? Maybe it's a question for lantronix but since the elecraft remote utility is looking for a com port instead of an iP address in the internet, I am at a stopping point. Any help would be appreciated.
de dave WB7ELY