Openhabe 2 Homematic Binding can’t find any things

Hello friends,

I installed openhab2 the newest release on my Intel Nuc and then installed the binding for Homematic. The homematic Bridge is online.
If I go to the inbox then nothing can be found. Even the Bridge can not find anything. I know that communication works in 3 steps(if you don’t have CCU but a LAN-Gateway): openhab2 – homegear – HM-LAN_gateway – devices. I can not figure out what’s the problem.
Connections seem to be well configured in all directions so why the binding can’t find any things?

Maybe smbd else got similar problem?
Can anybody help me please.
Kind regards

Do you see the devices in homegear?