Hey dont give up so fast. KNX secure is not tested and supported as non secure. You already posted here about it KNX secure - initial implementation - #9 by holgerf so you know its still not finished also by looking at the github entry its still not finished [knx] support for KNX secure · Issue #8872 · openhab/openhab-addons · GitHub I gave up using knx secure unless as knx secure is adressed more towards commercial setups where you have no control over the networking or the bus can be tapped or rf communication etc but there you dont use openhab there are other visu etc