Error -1 when calling dynupdate.no-ip.com

[bosoft-ESP]

Hello
I have been trying for many days to get http to not respond -1 using the DDNS_client.ino example.
I have modified the source (EasyDDNS.cpp) to know if the call to http.begin was correct.
`int httpCode = http.GET();

Serial.println(String(httpCode)+" desde ddns.cpp: "+update_url);

if (httpCode == 200) {
`
If I do a copy/paste from monitor in firefox it correctly updates the ip in no_ip.com.
The call to "ifconfig.me/ip" resolves it perfectly and returns the real ip.
I am using an ESP01S (8266) with all the updated libraries.
IDE v. 1.8.19
ESP8266 v. 3.1.2

Greetings