This thread is resolved. Here is a description of the problem and solution.
Problem:
The client is unable to register their site with WPML due to a site key mismatch and communication errors with wpml.org.
Solution:
If you're experiencing this issue, we recommend you try the following steps:
1. Navigate to Plugins → Add New and select the Commercial tab. Click 'Unregister WPML from this site'.
2. After the page loads, click on 'Register WPML'. You will be prompted to enter the site key. Click on 'Get a key for this site'.
3. Complete the site key wizard in your WPML account and set it to 'Production site'.
4. Copy your new key and paste it in the Commercial tab. Afterwards, delete your old site key in the WPML account.
If the communication error persists, contact your hosting provider and ask them to whitelist the following domains to ensure proper communication with WPML’s services:
- wpml.org
- cdn.wpml.org
- api.wpml.org
- api.toolset.com
- cloudfront.net
For more details, visit https://wpml.org/faq/wpml-plugin-cannot-connect-to-wpml-org/
Please note that this solution might be irrelevant if it’s outdated or not applicable to your case.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 issue persists, please open a new support ticket at WPML support forum.
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