The old 2413s is still functioning, but showing signs of failing. I performed a factory reset on the new 2413U. Powered down both Old PLM and EISY. Connected the new USB cable to PLM & EISY. Powered on the PLM, then powered on the EISY. Logged into Admin Console and selected RESTORE PLM. I received the error: "Failed resetting the PLM" [-200000/-30]. Unsure what to do next.

The only thing that comes to mind: did you also remove the USB to serial adapter?

Yes. I used the cable which came with the new 2413U. It has a Type B going to the and the other end is a Type A. I am using a Type A to Type C adapter to plug it into the EISY.

I never performed this action but from what I've read there should be a replace modem when you plug in a different modem. If that is not present search for the procedure @Brian H post all the time.

If your using the admin console, click on Tools > Diagnostic > PLM info/Status. Does it show as connected? If not, replace the cable

As I remember, the 2413U doesn't ship with a USB cable. Try using a generic USB-C to USB-B cable

@Techman,

The status shows: 0.0.0 v0 / Not Connected.

I tried another of my USB-B to USB-A cables with my USB-A to USB-C adapter with the same result.

Note that the USB-A to USB-C adapter works fine with my old PLM

@GPG

It's most likely one of two things, the cable, or Insteon support isn't checked on the admin console configuration tab.

Is the green led on the PLM on?

Green light is on PLM and INSTEON Support is checked.

Try replacing the cable with a stock cable, no adapter

I ordered a standard cable (B to C). Should be here tomorrow.

Let me know if that solved the problem

In the meantime try a different USB port on the eisy