I’ve got a FreePBX box that has been working well for the past couple of months. When it was originally installed, I was able to generate a LetsEncrypt certificate for the box.
While I’m absolutely positive I probably changed a firewall rule somewhere, I don’t know what it would have been. Now, the box cannot update the certificate – “operation timed out after 30001ms”.
What’s the secret to opening up the box to allow the operation to succeed? I’ve allowed port 80 traffic to the box.