I have a SmartThings WiFi router (model ET-WV525). After a factory reset, it works fine as a Plume mesh router and the ‘SmartThings Wifi-Adaptive’ service is online. However, the integrated hub will not activate and does not appear in the Hubs section of the SmartThings Advanced Web App. This indicates it is failing to register with the SmartThings cloud. Can anyone confirm if hub activation for this model is no longer supported?