CTW v5.5.2.0
When I attempt to Register Contact with Let’s Encrypt, I get the following error:
Failed to communicate with the Certificate Authority. Check their status page for service announcements and ensure your system can make outgoing https requests. Also, under Manged Certificates, I can click on the “Test” button and those tests pass.
On that same server where I’m running CTW, I’m able to reach https://letsencrypt.org using a web browser.