InfluxDB connection failed: (Influx URL) connection failed

[kenb4]

Is it an https: URL? Do other such sites work for you?

Error message: connection failed

So that's

    case HTTPC_ERROR_CONNECTION_FAILED:
        return F("connection failed");

which is

#define HTTPC_ERROR_CONNECTION_FAILED   (-1)

So see

Problem with esp8266 GET request throws http error -1

I get an http error -1 on esp8266 with the following code. Connection to Wifi is working fine. but http request leads to an erorr. I tried with GET and POST as well but same error. http request works well in the browser on the other hand. Can you please help to analyze this issue? #include <ESP8266WiFi.h> //#include <WiFiClientSecure.h> #include <ESP8266HTTPClient.h> #include <WiFiClient.h> #include <UrlEncode.h> const char* ssid = "XXXXX"; const char* password = "XXXXXX"; // +internationa…

In particular, in post #4 are some steps to enable the Debug port and Debug Level. Re-Upload to rebuild and try again; see what it says.

You can even try those settings with a simplified sketch that just tries to connect and GET /no-such-path at that origin (scheme://host:port). If you get a 404 or 401 or whatever, that at least is a proper HTTP response, and the connection works.