I have my multi node system running stably for about 2 years now. However from time to time (once a month) I loose connectivity through the router/gateway. My solution has been to reboot the router/gateway to restore node to node connectivity.
I am wondering what techniques people have used that have 100% reliability?
Here is the detection code I used:
if(WiFi.status() == WL_CONNECTED) wifiFailCounter = 0;
else { //no WiFi connection
wifiFailCounter += 1; //increment
DEBUG_INFO.println("Lost WiFi ... ");
if(wifiFailCounter >= (WIFI_TIMEOUT_S/(BLYNK_SEND_INTERVAL_mS/1000))) {
DEBUG_INFO.println("Rebooting ...");
if(OTA.running == false) { //only restart if not in the middle of a OTA
ESP.restart(); //reboot if no OTA in progress
}
}
}