even a simple code like this can raise my problem

//connect to WiFi 
Serial.printf("Connecting to %s ", ssid);
WiFi.begin(ssid, password); 
while (WiFi.status() != WL_CONNECTED) { 
delay(500); Serial.print(".");
 }

Serial.println(" CONNECTED");

with this config setting everything is ok

M5Dial.begin(cfg, false, false);

but if i enable rfid

M5Dial.begin(cfg, false, true);

m5dial can connect only once to my wifi network, i have a fritzbox router

any idea?