Tradfri Gateway not discovered

Add-ons Bindings
1

I run Openhab 2.40 as docker container on my RPi3 and the Tradfri binding 0.10.0.oh240 does not discover my Tradfri Gateway v1.8.25 if

  • I use the addons.cfg for installing the binding and if
  • I create a tradfri.things for configuring the host address and security code and adding several Tradfri devices to my system

I use the following configuration:

addons.cfg

binding = zwave,icloud,astro,openweathermap,chromecast,tradfri

tradfri.things

Bridge tradfri:gateway:gwa0c9a0d93fe7 "Tradfri Gateway" [ host="192.168.0.121", code="fy6RrG" ] {
    0220 traColorTempBulbLiv1 "TradFri WZ Leuchte 1" [ id=65562 ]
    0220 traColorTempBulbLiv2 "TradFri WZ Leuchte 2" [ id=65564 ]
    0220 traColorTempBulbLiv3 "TradFri WZ Leuchte 3" [ id=65565 ]
    0830 traRemoteControlLiv1 "TradFri WZ Fernbedienung 1" [ id=65561 ]
}

Once the binding is installed and started I got the following error

[hingStatusInfoChangedEvent] - ‘tradfri:gateway:gwa0c9a0d93fe7’ changed from UNKNOWN to OFFLINE (COMMUNICATION_ERROR)

Checking the logs reveals an error in the establishment of a connection to the Tradfri Gateway as follows

20:31:58.032 [WARN ] [discovery.TradfriDiscoveryParticipant] - Discovered Tradfri gateway doesn't have an IP address: [ServiceInfoImpl@29124738 name: 'gw-a0c9a0d93fe7._coap._udp.local.' address: '(null):5684' status: 'NO DNS state: probing 1 task: null', has NO data, empty]
20:31:58.050 [DEBUG] [org.eclipse.smarthome.binding.tradfri] - ServiceEvent REGISTERED - {org.eclipse.smarthome.core.thing.binding.ThingHandlerFactory}={service.id=407, service.bundleid=266, service.scope=bundle, component.name=org.eclipse.smarthome.binding.tradfri.internal.TradfriHandlerFactory, component.id=245} - org.eclipse.smarthome.binding.tradfri
20:31:58.277 [DEBUG] [org.eclipse.smarthome.binding.tradfri] - ServiceEvent REGISTERED - {org.eclipse.smarthome.config.discovery.DiscoveryService}={service.id=408, service.bundleid=266, service.scope=singleton} - org.eclipse.smarthome.binding.tradfri
20:31:58.549 [DEBUG] [ng.tradfri.internal.TradfriCoapClient] - CoAP GET request
uri: coaps://192.168.0.121:5684/15011/15012
20:32:58.630 [DEBUG] [ng.tradfri.internal.TradfriCoapClient] - CoAP GET request
uri: coaps://192.168.0.121:5684/15011/15012
20:33:10.972 [DEBUG] [g.tradfri.internal.TradfriCoapHandler] - CoAP onError
20:33:17.652 [DEBUG] [g.tradfri.internal.TradfriCoapHandler] - CoAP onError

The installation and setup of the Tradfri binding over the UI works as expected. The binding finds the Tradfri GW and once I set the security code the binding connects to the Tradfri GW and gets the list of known Tradfri devices. But this is not the way I want to add my devices to my system.

I am not able to run Tradfri binding by using the configuration file. Any ideas what could cause the error (CoAP onError)?

2

There are several threads and bugs on github WRT tradfri communication errors.
You may want to try an approach discussed at:

3

Thanks for the hint. Using the below configuration file for the binding solved it, also after I restarted the Tradfri Gateway.

Bridge tradfri:gateway:gwa0c9a0d93fe7 "Tradfri Gateway" [ host="192.168.0.121", identity="7270d", preSharedKey="Sqdg" ] { 
    0220 traColorTempBulbLiv1 "TradFri WZ Leuchte 1" [ id=65562 ]
}