Skip to content Skip to sidebar

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

Problem:
The client is experiencing persistent connection issues with WPML on their website hosted in China. WPML is unable to connect to wpml.org for updates or validation due to suspected firewall or geoblocking restrictions.
Solution:
We recommend the client to contact their hosting provider to whitelist the following domains to ensure they are not being blocked:

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

We have confirmed from our side that the site is not being blocked by our services.

If this solution does not resolve the issue or seems outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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 WPML support forum for further assistance.

This is the technical support forum for WPML - the multilingual WordPress plugin.

Everyone can read, but only WPML clients can post here. WPML team is replying on the forum 6 days per week, 22 hours per day.

Tagged: 

This topic contains 1 replies, has 0 voices.

Last updated by Shekhar Bhandari 1 month ago.

Assisted by: Shekhar Bhandari.

Author Posts
June 12, 2026 at 1:57 pm #18100131

Mohamed Amine Samet

Hello WPML Support Team,

I am experiencing a persistent connection issue on my website: hidden link. WPML is unable to connect to wpml.org to check for updates or validate the communication.

In the Installer Support page, the API Server status sometimes shows as green, but the logs show the following error:
"Installer cannot contact our updates server to get information about the available products and check for new versions." (Failing to fetch [hidden link)).

Since the website is hosted in China, I strongly suspect this is related to the firewall blocking or timing out outbound connections to your servers.

Could you please let me know if you have any specific solutions, a dedicated proxy, or an alternative endpoint/mirror for users hosting their sites in China to bypass this block?

Thank you in advance for your help.

June 15, 2026 at 7:42 am #18103023

Shekhar Bhandari
WPML Supporter since 03/2015

Languages: English (English )

Timezone: Asia/Kathmandu (GMT+05:45)

Hello there,

Thank you for contacting WPML support. I'd be happy to assist you with this issue.

Please let me know whether Maiya's suggestions helped resolve the problem. Have you contacted your hosting provider and whitelisted the domains mentioned by Maiya?

I checked from our side and can confirm that the site is not being blocked by our services.

Look forward to your reply.

Thanks