Problem whith knx bindings


I have a small question because I am stuck with the last knx bindings.
I just reinstalled openhab and I can not get the items to work … if I do as before, create a file defaut.items in the folder items nothing happens. so I understood that now all that was going on in the paperwork with things. in configuration things, knx / ip gateway is well online, so I guess on this side it’s good, but knx device is offline and despite full trials nothing happens. can you unblock me in a few lines.

a big thank-you

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