This article addresses both DrayOS and Linux based Draytek routers. Each latest OS supports DrayDDNS for Let’s Encrypt certification.
The first section demonstrates how to use LetsEncrypt certificate generation with a DrayDDNS hostname. The second section covers how you can use your own hostname with LetsEncrypt certificates.
Before proceeding, check that the [System Maintenance] > [Time and Date] current system time is synchronised with an NTP server or your browser.
Make sure that your Linux based Draytek router is running 1.4.0 or higher firmware version. It is presumed that your DrayDDNS or registered domain has been successfully registered.
It is also presumed that your router’s https management services are enabled in the [System Maintenance] > [Access Control] > [Access Control] section. Also take a note of the HTTPS management port (set here to default 443).