Seeing "WPML plugin cannot connect to wpml.org" in new Dev environment (behind our firewall)

This thread is resolved. Here is a description of the problem and solution.

Problem:
You are experiencing an issue where the WPML plugin cannot connect to wpml.org in a new development environment behind your firewall.
Solution:
We recommend you try the following steps:
1. Navigate to Plugins → Add New and click the Commercial tab. Then, click 'Unregister WPML from this site'.
2. After the page loads, click on 'Register WPML'. You will see a message asking you to enter the site key. Click on 'Get a key for this site'.
3. In your WPML account, complete the site key wizard and set it to a development site.
4. Copy your new key and paste it in the Commercial tab. Once done, you can delete your old site key in the WPML account if it exists.
If the issue persists, please upload relevant screenshots to illustrate the problem.

This solution might be irrelevant if it's outdated or not applicable to your case.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 problem continues, please open a new support ticket at WPML support forum.

This is the technical support forum for WPML - the multilingual WordPress plugin.

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Tagged: Exception

This topic contains 1 reply, has 0 voices.

Last updated by Andrey 2 weeks, 3 days ago.

Assisted by: Andrey.

Author	Posts
April 11, 2025 at 7:36 pm #16924297
thomasT-21	Background of the issue: I am trying to resolve the WPML issue where the plugin cannot connect to wpml.org in a new Dev environment behind our firewall. I have already tried the recommended actions without success. The issue can be seen at hidden link. Symptoms: WPML plugin cannot connect to wpml.org. I expected no error, but instead, I got this connection issue. Questions: What additional steps can I take to resolve the WPML connection issue? Are there specific firewall settings that need to be adjusted for WPML?
April 11, 2025 at 9:25 pm #16924566
Andrey WPML Supporter since 06/2013 Languages: English (English ) Russian (Русский ) Timezone: Europe/Kyiv (GMT+03:00)	Thank you for contacting WPML support. Can you try the following steps? 1. Go to Plugins → Add New and click the Commercial tab. Click Unregister WPML from this site. 2. Once the page loads, click on Register WPML. A message asking you to enter the site key will appear. Click on Get a key for this site. 3. In your WPML account, complete the site key wizard and set it to development site. 4. Finally, copy your new key and paste it in the Commercial tab. When done, you can delete your old site key in the WPML account if it exists. If there is still an issue, please upload relevant screenshots to illustrate the problem.