Background of the issue:
I have licenses for WPML and have moved my website to a new hosting provider. I am trying to register the site but encounter an issue. The issue can be seen at: hidden link
Symptoms:
I receive the error message: 'Connection failed! Please refresh the page and try again. (Unable to register: Site key not matching)'.
Questions:
Why is the site key not matching after moving to a new hosting provider?
How can I resolve the 'Connection failed' error to register my site?
Hi there, and thank you for contacting WPML Support.
This issue usually happens when the site URL and registered site URL are different, e.g., with www or without www. Could you please delete the existing site key and create a new one by following the below steps:
1. Please login to your WPML.org account >> Go to the Sites page: https://wpml.org/account/sites/
2. Delete the existing site key.
3. Please login to your site and go to the Dashboard >> Plugins >> Add new plugin > Commercial tab and click the Unregister WPML from this site link if that link exists.
4. Then please click the Register WPML link.
5. Click the Get a key for this site link.
6. It will generate the Key for your site.
7. Copy the key, paste it back into the input box, and press the Register button.
If the notifications still persist, please try the below procedure:
1. Go to WP Dashboard Menu >> Updates.
2. Press the "Check again" link and see if this resolves the issue.