connection refused

[bukanspot]

Why is the response from firebase connection refused after the code has been running for several minutes?
I tried using code from https://github.com/mobizt/Firebase-ESP32/blob/master/examples/Basic/Basic.ino

19:13:11.450 -> Set bool... connection refused
19:13:11.450 -> Get bool... connection refused
19:13:11.450 -> Get bool ref... connection refused
19:13:11.450 -> Set int... connection refused
19:13:11.450 -> Get int... connection refused
19:13:11.450 -> Get int ref... connection refused
19:13:11.450 -> Set float... connection refused
19:13:11.450 -> Get float... connection refused
19:13:11.498 -> Set double... connection refused
19:13:11.498 -> Get double... connection refused
19:13:11.498 -> Set string... connection refused
19:13:11.498 -> Get string... connection refused
19:13:11.498 -> Update node... connection refused

What's the problem? @mobizt

[mobizt]

Please make sure you set this properly.

Firebase-ESP32/examples/Basic/Basic.ino

Lines 81 to 83 in 2ba9ce7

	// Comment or pass false value when WiFi reconnection will control by your code or third party library e.g. WiFiManager
	Firebase.reconnectNetwork(true);

Otherwise, it is because your router or network that cannot access the internet.

[bukanspot]

I've made sure to add to set Firebase.reconnectNetwork(true);.
In another case I also added code to check wifi and firebase connection before running the firebase code but the same problem still occurs.

if (WiFi.status() == WL_CONNECTED && Firebase.ready() && Firebase.errorQueueCount(fbdo) == 0) {
  // firebase code
}

In my other code I found the error response connection refused problem because the queue was full, but I didn't know how to reset the queue. I tried resetting the Firebase connection but it didn't solve the problem.

[mobizt]

That option is for when you don't implement the code or use WiFiManager to re-connect WiFi and WiFi.setAutoReconnect will be called internally of this library.

Please update your ESP32 Arduino SDK as it is the bugs in WiFi library because of function WiFi.setAutoReconnect.

[mobizt]

Hope you understand does Firebase.reconnectNetwork works for.

[mobizt]

For the queue, it is not the cause of error "connection refused".

The queue is FIFO ordered, then the error is from the first request in queue or at index 0.

[mobizt]

You have to solve network issue instead.

Error queue is not functioning if you don't initiate it.
https://github.com/mobizt/Firebase-ESP32/blob/master/examples/Queue/Queue.ino