The SSL connection could not be established, see inner exception. Win32Exception: The message received was unexpected or badly formatted - ssl

Question

I need to download a document from url but I'm getting SSL connection error,
I have tried all the solutions shared on stack overflow, which were almost the same but I'm still getting this error,
AuthenticationException: Authentication failed because the remote party sent a TLS alert: 'HandshakeFailure'.
Win32Exception: The message received was unexpected or badly formatted.
public async Task<ClientResult<HttpResponseMessage>> GetDocumentData(string url)
{
var getDocumentDataResult = new ClientResult<HttpResponseMessage>();
ServicePointManager.ServerCertificateValidationCallback = delegate (object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) { return true; };
try
{
using (var httpClientHandler = new HttpClientHandler())
{
httpClientHandler.ServerCertificateCustomValidationCallback += (message, cert, chain, errors) => { return true; };
//Setting TLS 1.2 protocol
httpClientHandler.SslProtocols = System.Security.Authentication.SslProtocols.Tls12;
var certFile = Path.Combine("C:\\Users\\myUser\\Documents", "31075939.cer");
httpClientHandler.ClientCertificates.Add(new X509Certificate2(certFile));
certFile = Path.Combine("C:\\Users\\myUser\\Documents", "30955730.cer");
httpClientHandler.ClientCertificates.Add(new X509Certificate2(certFile));
HttpResponseMessage result = new HttpResponseMessage(HttpStatusCode.OK);
result.Content.Headers.ContentType = new MediaTypeHeaderValue("application/pdf");
//var stream = new FileStream(url, FileMode.Open, FileAccess.Read);
Uri absoluteUri = new Uri(url, UriKind.Absolute);
HttpClient client = new HttpClient(httpClientHandler);
HttpResponseMessage response = await client.GetAsync(absoluteUri);
Byte[] bytes = await response.Content.ReadAsByteArrayAsync();
//result.Content = new StreamContent(stream);
getDocumentDataResult.StatusCode = response.StatusCode;
getDocumentDataResult.ResultContent = bytes.ToString();
}
}
catch (Exception ex)
{
getDocumentDataResult.ExceptionText = ex.Message;
getDocumentDataResult.StatusCode = HttpStatusCode.InternalServerError;
}
return getDocumentDataResult;
}
}
}
Complete Error is,
System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception.
---> System.Security.Authentication.AuthenticationException: Authentication failed because the remote party sent a TLS alert: 'HandshakeFailure'.
---> System.ComponentModel.Win32Exception (0x80090326): The message received was unexpected or badly formatted.
--- End of inner exception stack trace ---
at System.Net.Security.SslStream.ForceAuthenticationAsync[TIOAdapter](TIOAdapter adapter, Boolean receiveFirst, Byte[] reAuthenticationData, Boolean isApm)
at System.Net.Http.ConnectHelper.EstablishSslConnectionAsync(SslClientAuthenticationOptions sslOptions, HttpRequestMessage request, Boolean async, Stream stream, CancellationToken cancellationToken)
--- End of inner exception stack trace ---
at System.Net.Http.ConnectHelper.EstablishSslConnectionAsync(SslClientAuthenticationOptions sslOptions, HttpRequestMessage request, Boolean async, Stream stream, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.AddHttp11ConnectionAsync(HttpRequestMessage request)
at System.Threading.Tasks.TaskCompletionSourceWithCancellation`1.WaitWithCancellationAsync(CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.GetHttp11ConnectionAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at System.Net.Http.HttpConnectionPool.SendWithVersionDetectionAndRetryAsync(HttpRequestMessage request, Boolean async, Boolean doRequestAuth, CancellationToken cancellationToken)
at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, Boolean async, CancellationToken cancellationToken)
at System.Net.Http.HttpClient.g__Core|83_0(HttpRequestMessage request, HttpCompletionOption completionOption, CancellationTokenSource cts, Boolean disposeCts, CancellationTokenSource pendingRequestsCts, CancellationToken originalCancellationToken)