Niko Home Control binding not working with new version of NikoHome Control (2.26.4)

Add-ons Bindings
1

I’ve update my Niko home Control installation to version 2.26.4 Since then all things behind the niko home bridge have ERR:COM. The bridge itself is still ONLINE.

I’ve another niko home control bridge which is still on older version 2.26.1. This one is still working ok.

On the logging I see only the fact the niko discovery service is not connected.

09:54:53.482

  1. Timestamp

    Jul 30, 2026, 9:54:53 AM

  2. Level

    WARN

  3. Logger Class

    org.openhab.binding.nikohomecontrol.internal.discovery.NikoHomeControlDiscoveryService

  4. Message

    not connected

Anybody having same problem? Any idea how to proceed?

Thanks in advance

2

Update: I’ve in openhab disabled and re-enabled the bridge: now the bridge has also communication error.

Updated the API tken doesn’t solve the problem.

I see also another message coming bab in the log:

  1. Time

    10:30:48.300

  2. Timestamp

    Jul 30, 2026, 10:30:48 AM

  3. Level

    WARN

  4. Logger Class

    org.openhab.core.io.transport.mqtt.internal.Subscription

  5. Message

    A subscriber of type ‘class org.openhab.binding.nikohomecontrol.internal.protocol.nhc2.NikoHomeControlCommunication2’ failed to process message '7B22506172616D73223A5B7B2244657669636573223A5B7B2255756964223A2239343639303036302D646438322D343736362D383865662D663630666466396533393261222C224964656E7469… cut

3

Problem solved:

was caused by a integration of ABB EV charger. THe ABB EV charger is not connected in the Niko home control programm. The new version send empty definition. Old version porbably not. Niko binding should be able to skip the definition and not crash the binding.
For me not a problem as the ABB EV charger was not needed : just reomved the integration from the sw porgram and uploaded the new definition

4

Do you have a log of the empty response that crashed the binding? You can send it in a PM. I can check where it crashed then and correct it. I see it is cut in your previous message, I need to full response to be able to correct it and see where it failed.

5

I hope this help you

6

Thanks. I created a PR to fix this: [nikohomecontrol] Fix exception on car charger bad data by mherwege · Pull Request #21302 · openhab/openhab-addons · GitHub