Delphi Indy NTLM on Windows 11 don't use good user

Question

I have code that works well on Windows 10 and previous version and stop working on Windows 11. I use Indy with IdAuthenticationNTLM in my uses.

here is my code:

procedure SetIdHTTPSSL(AIdHTTP: TIdHTTP);
var
  ssl: TIdSSLIOHandlerSocketOpenSSL;
begin
  ssl := TIdSSLIOHandlerSocketOpenSSL.Create(AIdHTTP);
  ssl.SSLOptions.SSLVersions := [sslvTLSv1_2];
  ssl.SSLOptions.Method := sslvTLSv1_2;
  ssl.SSLOptions.Mode := sslmUnassigned;
  ssl.OnVerifyPeer := SSLIOHandlerVerifyPeer;
  ssl.SSLOptions.VerifyMode := [sslvrfPeer];
  ssl.SSLOptions.VerifyDepth := 2;
  AIdHTTP.IOHandler := ssl;
end;

function IndyHttp(AFileName: string): Boolean;
var
  IdHTTP: TIdHTTP;
  tmpString: string;
  FileStrm: TFileStream;
begin
  IdHTTP := TIdHTTP.Create(Self);
  try
    IdHTTP.ProtocolVersion := pv1_1;
    IdHTTP.HTTPOptions := IdHTTP.HTTPOptions + [hoKeepOrigProtocol] + [hoInProcessAuth];
    IdHTTP.Request.Username := MyUserName;
    IdHTTP.Request.Password := MyPassword;
    IdHTTP.Request.BasicAuthentication := False;
    IdHTTP.Request.ContentType := 'application/octet-stream';
    IdHTTP.Request.CacheControl := 'no-cache';
    IdHTTP.Request.CustomHeaders.Add('Content-Location: ' + ExtractFileName(AFileName));
    IdHTTP.Request.UserAgent := '';
    IdHTTP.Request.Accept := '';

    SetIdHTTPSSL(IdHTTP);

    FileStrm := TFileStream.Create(AFileName, fmOpenRead or fmShareDenyWrite);
    try
      tmpString := IdHTTP.Post(GetHTTPString, FileStrm);
      Result := pos('OK', UpperCase(tmpString)) > 0;
    finally
      FileStrm.Free;
    end;
  finally
    IdHTTP.Free;
  end;
end;

When I check on Fiddler: the username sent on Windows 11 in the NTLM protocol is not MyUserName (that I set in my Indy components) but my Windows username. With older Windows version, it was ok. What is the way to fix this?