[Resolved] WPML not compatible with Litespeed QUIC service

Problem:
The client is experiencing an issue where attempting to validate the Litespeed extension with QUIC.cloud results in a 404 error page when WPML is activated. This problem persists even after resaving permalinks with WPML deactivated, indicating a potential redirect issue caused by WPML.
Solution:
We recommend the following steps to troubleshoot and potentially resolve the issue:
1. Deactivate WPML and connect to the Litespeed Cloud. If successful, reactivate WPML and check if the issue reoccurs.
2. If the problem persists, create a sandbox site with a fresh WordPress, WPML, and Litespeed installation to verify if the issue is specific to the client's current site setup.
3. Consult with the hosting providers to check for any server-side configurations, firewall rules, or security directives that might be causing the redirect issue. Additionally, reviewing server logs may provide further insights into the problem.

If these steps do not resolve the issue or if the solution seems outdated or irrelevant to your case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix,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