Node is disconnected. This means that the node was not connected so far or the developer disconnected it by API call or the node is removed. A real disconnection can not be detected because the main Matter protocol uses UDP. Data are stale and interactions will most likely return an error.
Node is reconnecting. This means that former communications failed, and we are trying to reach the device on known addresses. Data are stale. It is yet unknown if the reconnection is successful.
The node seems offline because communication was not possible or is just initialized. The controller is now waiting for a MDNS announcement and tries every 10 minutes to reconnect.
Node seems active nd last communications were successful and subscription updates were received and all data is up-to-date.