Development Kit: [ESP32-DevKitC]
Kit version (v1]
Module or chip used: [ESP32-WROOM-32|ESP32-WROOM-32D]
IDF version: v4.3-dev-771-gc77c4ccf6
Build System: idf.py
Compiler version: xtensa-esp32-elf-gcc (crosstool-NG esp-2020r2) 8.2.0
Operating System: [Windows]
(Windows only) environment ...

Yes. Good suggestion.

I need to create an HTTP server (not HTTPS with OpenSSL Cretification), with basic authentication (username & password).

I get examples to connect with HTTP server as a client with basic authentication...

sp_http_client_config_t config = {
.url = "http://user:passwd@httpbin.org/basic-auth/user ...

Thanks for the reply.

DNS cache on the access point will not be in our control, once the devices are deployed to different customers !

As you suggested, http get or ping to an internet resource could be better way out.

I have used "dns_gethostbyname()" to resolve the DNS url to check if the internet (net) is available on the wifi AP that ESP32 was connected. The solutions works. In the call-back function, I check if ipaddr == NULL then the net is not available.

I tried it using "google.com" first. It reported the ...

@Ganesh:: Please let us know the solution. It would be useful to everyone.