Homematic Binding: Bridge found, but cannot be accessed

  • Platform information:

    • Hardware: RASPI3
    • OS: Latest Rasbian
    • Java Runtime Environment: Oracle JDK 8
      java version “1.8.0_65”
      Java™ SE Runtime Environment (build 1.8.0_65-b17)
      Java HotSpot™ Client VM (build 25.65-b01, mixed mode)
    • openHAB version: Latest Stable
  • Issue of the topic: Homematic Bridge discovered, but considered as offline

  • Please post configurations (if applicable):

    • Items configuration related to the issue
  • If logs where generated please post these here using code fences:

2018-12-01 15:26:00.676 [INFO ] [ommunicator.AbstractHomematicGateway] - HmGatewayInfo[id=CCU,type=CCU2,firmware=3.41.11.20181126,address=OEQ0606427,wired=false,hmip=true,cuxd=true,group=true]
2018-12-01 15:26:15.724 [ERROR] [matic.handler.HomematicBridgeHandler] - Homematic bridge was set to OFFLINE-COMMUNICATION_ERROR due to the following exception: Read timed out
java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method) ~[?:?]
at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) ~[?:?]
at java.net.SocketInputStream.read(SocketInputStream.java:170) ~[?:?]
at java.net.SocketInputStream.read(SocketInputStream.java:141) ~[?:?]
at org.openhab.binding.homematic.internal.communicator.message.BinRpcMessage.(BinRpcMessage.java:74) ~[?:?]
at org.openhab.binding.homematic.internal.communicator.client.BinRpcClient.sendMessage(BinRpcClient.java:77) ~[?:?]
at org.openhab.binding.homematic.internal.communicator.client.BinRpcClient.sendMessage(BinRpcClient.java:66) ~[?:?]
at org.openhab.binding.homematic.internal.communicator.client.RpcClient.init(RpcClient.java:87) ~[?:?]
at org.openhab.binding.homematic.internal.communicator.client.BinRpcClient.init(BinRpcClient.java:54) ~[?:?]
at org.openhab.binding.homematic.internal.communicator.AbstractHomematicGateway.startServers(AbstractHomematicGateway.java:249) ~[?:?]
at org.openhab.binding.homematic.internal.communicator.AbstractHomematicGateway.initialize(AbstractHomematicGateway.java:183) ~[?:?]
at org.openhab.binding.homematic.handler.HomematicBridgeHandler.lambda$0(HomematicBridgeHandler.java:87) ~[?:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:?]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [?:?]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:?]
at java.lang.Thread.run(Thread.java:745) [?:?]

Using a RPI 3 install java zulu 32-bit.