Also sometimes I get heartbeat timeout before getting disconnected, but the only thing that changes is the wifi, the material remain the same … Could it be a firewall problem, does the esp8266 ping on google DNS or something ? I also tried the WiFi.setSleepMode(WIFI_NONE_SLEEP) in the setup but it didn’t change a thing!
Am I flooding the server ? I thought my timer was ok, maybe I should use “Blynk.virtualWrite(V0, millis() / 1000);” ?
I also found someone having the same problem