@Neo Andersson, maybe I'm blind, but have you added device with security enabled on HC3? With it I managed best result so far with ZXT-800. Yes, there was adding failed and I need to test it also on Z-Wave 3.0 engine as Z-Wave engine 2.0 was intoduced with HC2 with ZW300.   . . . Or your Remotec is just broken if no signal can be sent.