Siren Stopped Working

Hi,

My siren has stopped working. Not sure when it started but it doesn’t work anymore. Tested with a new siren and still no luck. When I turn on siren in new smartthings app, I get a network error after a few seconds. Would appreciate a response. FYI, I was one of the early adopters of Konnected and still using esp8266 with v2.2.3.

TIA!

Vishal