Hello everyone,
I tried to install Home Assistant OS for the first time and I struggle with the homematic integration.
I have chosen to intall it in the virtual machine manager on my Synology 218+, since I simply do not have a rasperry pi and I have running a docker with iobroker and other container already.
What I did so far:
I added the homematic config in the configuration.yaml:
homematic:
interfaces:
rf:
host: 192.168.178.120
port: 2001
resolvenames: json
callback_ip: 192.168.178.83
callback_port: 32001
ip:
host: 192.168.178.120
port: 2010
resolvenames: json
callback_ip: 192.168.178.83
callback_port: 32010
hosts:
ccu2:
host: 192.168.178.120
The general integration works, since I see all my homematic devices in the overview.
What doesent work are the callbacks from the CCU to HA and therefore I do not get updates if a switch is changed.
In the HA logs I see:
2025-10-06 16:08:06.698 DEBUG (SyncWorker_2) [pyhomematic._hm] ServerThread.proxyInit: init(‘http://192.168.178.83:32010’, ‘homeassistant-ip’)
→ I understand that this tells my CCU how and where to push the updates.
However in the CCU Logs I see:
ERROR [vert.x-worker-thread-4] IO Exception: Could not add interface: homeassistant-ip de.eq3.cbcs.legacy.communication.rpc.RpcIOException: java.net.ConnectException: Connection refused (Connection refused) at
And this shows that the HA does not open the ports, which explains the connection refused:
➜ ~ sudo netstat -tulpn | grep 32010
➜ ~ sudo netstat -tulpn | grep 8123
tcp 0 0 0.0.0.0:8123 0.0.0.0:* LISTEN
tcp6 0 0 :::8123 :::* LISTEN -
I hope you can help me solving this problem.
Thanks in advance!
oetzi