"udp send" methods does not work my esp8266

[masaokubo]

I use Arduino uno r3 with esp8266 firm 0018000902.
I have tried UDP packet from this uno to its sever on another pc by "send" method in ITEADLIB_Arduino_WeeESP8266.
However it output no packets.
Could you give me any suggestions.

thank you for your support.

[masaokubo]

My code is described as follows.
JoinAP, registerUDP is ok but this does not send any packets.

thank you for your supports.

---

#include "ESP8266.h"

#define SSID "XXXXX"
#define PASSWORD "XXXXX"
#define HOST_NAME "XXXX"
#define HOST_PORT (YYYY)

SoftwareSerial mySerial(11, 12); /* RX:D12, TX:D11 */
ESP8266 wifi(mySerial);
void setup(void)
{
Serial.begin(9600);
Serial.print("setup begin\r\n");

Serial.print("FW Version:");
Serial.println(wifi.getVersion().c_str());
  
if (wifi.setOprToStationSoftAP()) {
    Serial.print("to station + softap ok\r\n");
} else {
    Serial.print("to station + softap err\r\n");
}

if (wifi.joinAP(SSID, PASSWORD)) {
    Serial.print("Join AP success\r\n");
    Serial.print("IP: ");
    Serial.println(wifi.getLocalIP().c_str()); 
         
} else {
    Serial.print("Join AP failure\r\n");
}

if (wifi.disableMUX()) {
    Serial.print("single ok\r\n");
} else {
    Serial.print("single err\r\n");
}

Serial.print("setup end\r\n");

}
void loop(void)
{
uint8_t buffer[128] = {0};

if (wifi.registerUDP(HOST_NAME, HOST_PORT)) {
Serial.print("register udp ok\r\n");
} else {
Serial.print("register udp err\r\n");
}

char msgxx[256];
sprintf(msgxx,"Hello, this is client!\r\n");
wifi.send((const uint8_t*)msgxx, strlen(msgxx));
Serial.println(msgxx);

if (wifi.unregisterUDP()) {
    Serial.print("unregister udp ok\r\n");
} else {
    Serial.print("unregister udp err\r\n");
}


delay(5000);

}

[vicjomaa]

Hello I`ve the same problem using Arduino Uno R3, indeed the console show me this messages when i probe your code.
unregister udp err
register udp err

could you fix the problem ?
thanks for all...