This thread is resolved. Here is a description of the problem and solution.
Problem: We are seeing a cURL error on our site after activating WPML.
Solution: It could be that your Hosting Provider is blocking the WPML Installer, so it is generating an error.
We have two different calls being made so that installer can run update WPML and Toolset plugins. Amazon Cloud service the initial URL would be: http://d2salfytceyqoe.cloudfront.net/ and the IP is 184.108.40.206(note that this being an external service the IP can change, we have no control over it ). The other is to the WPML specific API with the following IP: 220.127.116.11. Please ask your hosting provider to make sure that these are not blocked. Then, retry the steps you were doing leading up to the error and let me know if the issue persists.
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