Homematic CCU2 Fw. 2.49.17: XML RPC not working

After updating my CCU2 with the latest firmware 2.49.17, XML RPC does not work anymore. After the CCU2 thing changes to online in Paper UI, it takes several minutes (Fw 2.47.20 about 30 seconds) for all things to come online. But in the control panel there are no more items available.

The openhab log is filled with messages like this:

2019-12-10 19:26:54.795 [WARN ] [matic.handler.HomematicBridgeHandler] - Unable
to load RSSI values from bridge 'XXXXXXXXXX'
2019-12-10 19:26:54.795 [ERROR] [matic.handler.HomematicBridgeHandler] - -1 rssi
Info: unknown.method name (sending rssiInfo()
java.io.IOException: -1 rssiInfo: unknown.method name (sending rssiInfo()
2019-12-10 19:32:59.043 [WARN ] [ommunicator.AbstractHomematicGateway] - Connect
ion lost on gateway 'XXXXXXXXXXXX', cause: "IOException java.net.ConnectException:
 Verbindungsaufbau abgelehnt"
2019-12-10 19:36:21.772 [INFO ] [ommunicator.AbstractHomematicGateway] - Connect
ion resumed on gateway 'XXXXXXXXXX'
2019-12-10 19:36:21.773 [WARN ] [matic.handler.HomematicBridgeHandler] - Device
with address 'XXXXXXXXXXXXXXX' not found on gateway 'XXXXXXXXXX'

As the firmware changelog says ‚ÄúEventauslieferung der Homematic IP XML-RPC Schnittstelle wurde √ľberarbeitet‚ÄĚ which means something like ‚Äúevent delivery from the XML-RPC interface was redesigned‚ÄĚ I suppose that either the XML-RPC addon for the CCU2 or the homematic binding needs some adjustments to work with the actual and following firmwares.

1 Like

I had the same problem.

my workaround
After downgrade to 2.47.20 the openhab is working fine.

I solved the problem in the same way. But this can only be a temporary solution as it excludes the CCU2 users from every future firmware update.

Some minutes ago I saw a post in the Homematic foreum that EQ3 has released a new version 2.49.18: https://homematic-forum.de/forum/viewtopic.php?f=26&t=55064&start=10#p547849
Maybe this helps to solve the problem.

Will give it a try this weekend. The changelog looks promising.

FW 2.49.18 fixed that issue for me

I can confirm that FW 2.49.18 now works with openHAB.