Can device reset/cancel attribute subscription ?

[jmarcgit]

Hi,

I paired a matter.js controller (using Nodered) with a Nest thermostat. I try to monitor temperature setpoints in order to sync the values with another heating system. It works almost... After few minutes I don't receive any notification anymore. I tried with the latest version of matter.js : same !

What is puzzling me is that it looks like that the controller is receiving the notification from the device but the callback is not fired. (debug log)

[Apollon77]

I assume you mean the PairedNode based API? Or which Controller API you talk about?
Which callback exactly you mean? The matter.js controller API based on PairedNode has events for changes to attributes or events and also "connectionAlive" event which is triggered when a device send a subscription "ping" without any new data.

basically yes a device could also kill subscriptions, but usually they do not do this.

So do you have more details and potentially debug level logs? Then I can answer more detailed

[jmarcgit]

Yes it uses the PairedNode API. I think I solved the problem. There were 2 issues:
-First I 'm running a firewall and I missed to allow all incoming traffic from the device. I don't understand why it worked for a while by the way.
-Problem doesn't happen after restarting Nodered. I suppose there is a problem when deploying the suscribe node dynamically. I will report this to the owner of the Nodered add-on.