I have the same problem.
Spendet hours, resseting the CCU2 and the Openhab Server
getting [ommunicator.AbstractHomematicGateway] - Can’t load device with address ‘001898A99262EA’ from gateway ‘LEQ1010457’: -3 Unknown Paramset: VALUES (sending <?xml version="1.0" encoding="ISO-8859-1"?>
getParamsetDescription
Hi Michael, you are not the only one, same situation for me.
Upgraded today and all Homematic IP devices went offline.
Verified this with a 2nd install of Openhab.
After install of 2.4.0 #1330 all Homematic IP devices went offline.
Downgraded to 2.3.0, all Homematic IP devices went online.
I just stumbled upon this thread, unfortunately after updating to 2.4.0~M2-1 which is still broken for me!
My setup is OpenHab 2.4.0~M2-1 connecting to Homegear (version 0.7.27-1824) all on one RPI (using openhabian).
All homematic devices are offline (I have non IP devices only) and I see java.lang.NullPointerException in RssiVirtualDatapointHandler. All other things are working fine.
018-08-28 22:40:00.216 [ERROR] [ematic.handler.HomematicThingHandler] - null
java.lang.NullPointerException: null
at org.eclipse.smarthome.binding.homematic.internal.communicator.virtual.RssiVirtualDatapointHandler.handleEvent(RssiVirtualDatapointHandler.java:56) ~[?:?]
at org.eclipse.smarthome.binding.homematic.internal.communicator.AbstractHomematicGateway.handleVirtualDatapointEvent(AbstractHomematicGateway.java:705) ~[?:?]
at org.eclipse.smarthome.binding.homematic.internal.communicator.AbstractHomematicGateway.loadChannelValues(AbstractHomematicGateway.java:488) ~[?:?]
at org.eclipse.smarthome.binding.homematic.handler.HomematicThingHandler.loadHomematicChannelValues(HomematicThingHandler.java:377) ~[?:?]
at org.eclipse.smarthome.binding.homematic.handler.HomematicThingHandler.doInitializeInBackground(HomematicThingHandler.java:137) ~[?:?]
at org.eclipse.smarthome.binding.homematic.handler.HomematicThingHandler.lambda$0(HomematicThingHandler.java:92) ~[?:?]
at java.util.concurrent.Executors$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:1149) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:?]
at java.lang.Thread.run(Thread.java:748) [?:?]
Stupid me
The Milestones are built from https://github.com/openhab/smarthome/tree/oh and I have missed to rebase that branch - hence it does not include the HMIP fix, sorry!
Will do a M3 later today with that fix…