Does WordPress SOAP call work on server (PHP) like it does locally?

I developed a SOAP call on PHP (inside WordPress) which works perfectly on local (MAMP) but when I upload to a shared host it doesn’t work. The request’s response is "Fail to connect to server(…)".

I tried to use the same PHP version and increase the server response time but it still doesn’t work.

Funny part: two other related endpoints work, just a specific one doesn’t.

A bit of my code:

    ob_start();
    error_reporting (E_ALL & ~ E_NOTICE & ~ E_DEPRECATED);
    ini_set('max_execution_time', 3600);
    ini_set("memory_limit","128M");
    ini_set('default_socket_timeout', 60);
    ini_set("soap.wsdl_cache_enabled", "0");
    header("Access-Control-Allow-Origin: *");

    $params = '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:val="johndoe">
        <soapenv:Header/>
        <soapenv:Body>
        <val:SomeThing.Execute>
        <val:SomeThing2>'.$SomeThing2.'</val:SomeThing2>
        <val:SomeThing3>'.$SomeThing3.'</val:SomeThing3>
        <val:SomeThing4>'.$SomeThing4.'</val:SomeThing4>
        </val:SomeThing.Execute>
        </soapenv:Body>
    </soapenv:Envelope>';
    
    $ch  = curl_init();
    $url = $url_geral;
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('autentica: /','Content-Type: application/xml'));
    curl_setopt($ch, CURLOPT_TIMEOUT, '600');
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_VERBOSE, true);
    curl_setopt($ch, CURLOPT_HEADER, false);
    $output        = curl_exec($ch);
    $response_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);