Curl 56 error: Recv failure Connection was reset

[joshuya_wu]

my project run in unity editor always appear “Curl 56 error: Recv failure Connection was reset” when I romete the sever use UnityWebRequest, but it no error run in apk and unity editor in version 2019.2.2f,
the version higher the 2019.4.x is appear this error in unity editor

[Atermizor]

For my project, I debugged my function that contain UnityWebRequest in the script and the problem was cause by the website you requesting from OR your internet. This is a part of my code:

IEnumerator GetESTTime()
    {
        var request = UnityWebRequest.Get("http://worldtimeapi.org/api/timezone/EST");
        yield return request.SendWebRequest();

//part of the code for debugging ----
        if(request.isHttpError || request.isNetworkError) 
        {
            Debug.Log("Error");
            //setting my player date time to default when I don't get the date from the web
            playerDateTime = DateTime.Now;
            yield break;
        }
//part of the code for debugging ----

        else
        {
        // my other functions
        }

[gbviktor]

after upgrade to Unity 6000.3.0f1 cause same issue:

Curl error 56: Recv failure: Connection was reset

            var form = new WWWForm();
            form.AddBinaryData("file", imageBytes, $"{id}", "image/png");

            using var request = UnityWebRequest.Post($"{baseUrl}/upload/{typeId}/{id}", form);
            await request.SendWebRequest();

With previous versions like 2022.3.62f2 works without issue.