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This thread is resolved. Here is a description of the problem and solution.

Problem:
You are trying to fetch subscription data using WPML and encountered a connection error: Unable to get data from service. The detailed error is cURL error 28: Failed to connect to api.wpml.org port 443 after 9376 ms: Couldn't connect to server.
Solution:
First, navigate to WPML > Support > Installer support on your WPML dashboard. Check if there are two green check icons at the top. If you see any red X-ses, it indicates a potential block by your hosting provider. We recommend contacting your hosting provider to ensure that the following domains are not blocked:
- wpml.org
- cdn.wpml.org
- api.wpml.org
- api.toolset.com
- cloudfront.net
Additionally, you can find more information about cURL error 28 in our documentation here: https://wpml.org/faq/wpml-plugin-cannot-connect-to-wpml-org/

If this solution does not resolve your issue or seems irrelevant due to being outdated or not applicable to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the problem persists, please open a new support ticket at our support forum.

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This topic contains 1 reply, has 2 voices.

Last updated by Mihai Apetrei 1 year, 9 months ago.

Assisted by: Mihai Apetrei.

Author Posts
July 19, 2024 at 4:53 am #15975766

bangsongB

Background of the issue:
I am trying to fetch subscription data for my site hidden link using WPML. I encountered an issue while checking the Installer Log.

Symptoms:
Connection error: Unable to get data from service. Detailed error: cURL error 28: Failed to connect to api.wpml.org port 443 after 9376 ms: Couldn't connect to server

Questions:
How can I resolve the cURL error 28 when trying to connect to api.wpml.org?
Is there a way to troubleshoot connection issues with WPML's API?

July 19, 2024 at 12:03 pm #15978155

Mihai Apetrei
WPML Supporter since 03/2018

Languages: English (English )

Timezone: Europe/Bucharest (GMT+03:00)

Hi there.

On WPML > Support > Installer support > can you please let me know if you see two green check icons at the top? Or are there any red X-ses instead of the green check icons?

If there are any red X-ses, can you please get in touch with your hosting provider making sure that these domains are not blocked?

– wpml.org
– cdn.wpml.org
– api.wpml.org
– api.toolset.com
– cloudfront.net

Curl error 28 is also mentioned in our documentation here:
https://wpml.org/faq/wpml-plugin-cannot-connect-to-wpml-org/

Please let me know how things go.

Mihai Apetrei