Second instance, different port

[FirePanther]

Hi,
I tried to run a second instance so I have more than like 15 Buttons (not only the activity buttons, I also want to control the Numpad).
I am running a second instance, but searching for devices again, after adding a device, has no results.
Doesn't matter if the first instance is running or not.
Anyone has an idea how I can add two instances?

Thanks for any help :)

Edit: Yes, I also changed the xml, I tried to change every value.
Edit2: I may have did it by just removing the first device and searching for both devices at the same time. But if you have a better way to do it, would still interest me 👍

[ourcontact]

I tried the same, I think from the Harmony side it needs separate IP addresses to find another.