Francesco

Problem:
The client was unable to use the 'Translate Everything Automatically' feature in WPML due to errors stating 'Could not load translation engines' and 'There is a problem connecting to automatic translation. Please check your internet connection and try again in a few minutes.' The client was concerned about connection issues and the inability to load translation engines.
Solution:
1. We asked the client to ensure that their staging website was re-registered with a new WPML key, as a valid key is essential for proper functionality.
2. We recommended following the big banner wizard that appears when using WPML on a newly migrated website, as completing this step is crucial.
3. We disabled the Security Optimizer and Site Optimizer plugins on the client's live website, which resolved the issue. We advised that security and object cache plugins might interfere with WPML and should be disabled during translation activities, then re-enabled afterwards.
4. We suggested that the client try accessing the site with a different admin user or browser if problems persist.

If this solution does not resolve your issue, or if it seems outdated or irrelevant to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix,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. Additionally, please feel free to open a new support ticket for further assistance at WPML support forum.