Configuration error: Cannot communicate with hCaptcha server.

Hello,

Could you provide the System Info?

Good morning, everyone,
I hope they are enough to solve the problem

-- hCaptcha Info --

Version: 3.9.0
Site key: Not set
Secret key: Not set
Theme:
Size:
Language: Auto-detect
Mode: live
Custom Themes: Off
Config Params: Not set
Turn Off When Logged In: Off
Disable reCAPTCHA Compatibility: Off
Whitelisted IPs: Not set
Login attempts before hCaptcha:
Failed login attempts interval, min: 15
Delay showing hCaptcha, ms: -100
Migrations:
2.0.0: 09/02/2024 08:44
3.6.0: 09/02/2024 08:44

--- Active plugins and themes ---

Contact Form 7:
Form: On
Elementor Pro:
Form: On
WP Core:
Comment Form: On
Login Form: Off
Lost Password Form: Off
Post/Page Password Form: Off
Register Form: Off

-- WordPress Configuration --

Version: 5.8.6
Language: it_IT
User Language: it_IT

-- Webserver Configuration --

PHP Version: 7.3.27
MySQL Version: 5.7.33
Webserver Info: Apache

Thank you for providing the info. But you have cut it in some parts, so I cannot see — PHP Extensions — section, which is important.

Problem looks like you do not have curl extension enabled.

Hi, no the curl extension is enabled:

— PHP Extensions —

cURL: Supported
fsockopen: Supported
SOAP Client: Installed
Suhosin: Not Installed

It may be that curl cannot create an https connection. On Site Health admin page you should have this in Passed Tests: https://i.imgur.com/NqIVmsf.png

I checked and wordpress tells me that that check has been passed

Hi, do you have any updates on this issue? Can I provide you with more information to find what is wrong? Analyzing the code, I noticed that the post request for configuration check has no body. Is this normal?

https://docs.hcaptcha.com/#verify-the-user-response-server-side
It says here that dve must be provided the “site secret”.

But reading the code I find this:
$settings = hcaptcha() -> settings();
$params = [
‘host’ => (string) wp_parse_url(site_url(), PHP_URL_HOST),
‘sitekey’ => $settings -> get_site_key(),
‘sc’ => 1,
‘swa’ => 1,
‘spst’ => 0,
];
$url = add_query_arg($params, hcaptcha() -> get_check_site_config_url());

$raw_response = wp_remote_post($url);

$raw_body = wp_remote_retrieve_body($raw_response);

if (empty($raw_body)) {
$this -> send_check_config_error(__(‘Cannot communicate with hCaptcha server.’, ‘hcaptcha-for-forms-and-more’));
}

I wonder if the problem is not here

Can you make var_dump or error_log of $raw_response? I want to see the answer from the server.

Hi, thanks for the quick response.
I have done var_dump of raw_response and the content is this:

object(WP_Error)#13947 (3) { [“errors”]=> array(1) { [“http_request_failed”]=> array(1) { [0]=> string(58) “cURL error 28: Resolving timed out after 5514 milliseconds” } } [“error_data”]=> array(0) { } [“additional_data”:protected]=> array(0) { } }

So since a resolution problem is indicated I tried to dump also url:

https://api.hcaptcha.com/checksiteconfig?host=www.teknonet.it&sitekey=*********&sc=1&swa=1&spst=0

Of course, I have taken care to obscure my sitekey

It is definitely your site problem (cURL error 28: Resolving timed out after 5514 milliseconds). The curl cannot communicate and fails by timeout. It may happen due to a wrong SSL certificate or some other reason.

Please read this article.

I have solved the problem, I write my solution for someone who has the same problem as me:
I solved by simply changing the server DNS from google’s to my company’s internal DNS.

Thank you for reporting.