Reconnection after wifi lost possible?

[dired]

I tried some options (maybe I missed some others), to reconnect to the mqtt broker after a wifi outage.
After wifi reconnects successfully (WiFi.reconnect();) , I try to reconnect mqtt but neither

while (!mqtt.connect("arduino", "public", "public")) {
              Serial.print(".");
              delay(1000);
          }

nor

mqtt.disconnect();
delay(1000);
mqtt.begin(client);
while (!mqtt.connect("arduino", "public", "public")) {
              Serial.print(".");
              delay(1000);
          }

do the trick.
It does not successfully connect again.

At this point I can ping the device again, apparently wifi-reconnect does work.
But the error I get, when I print with Serial.print(mqtt.getLastError()); is "-6" ( LWMQTT_NETWORK_FAILED_WRITE = -6,).

I don't know what the issue seems to be for it to not reconnect to the mqtt broker again. I can now reboot the device, but I would love to use this library with reconnect without "cheating".

[hideakitai]

Fixed by #19