ets more than one device is in programming mode

[gjniewenhuijse]

Do you have another IP router connected to the bus at the same time?  If yes then disconnect it as you can have only one.

Problem found!

Another device in the knx bus (pi with homebridge and knxd).

If i shutdown this device it works, but why?
This device with other ip/usb programming device works great.

I know knxd and eibd are about the same.