In order to get a “green padlock” in your web-brower on a RDPlus Web Access page, you will need a valid SSL certificate and access your domain by HTTPS address, as example Valid SSL certificates can be purchased from a lot of hosting/domain name providers such as GoDaddyVerisignComodokSoftware, etc.

Starting with version 9.20, Terminal Service Plus provides an easy to use feature to generate a free and valid SSL certificate.
In 3 mouse clicks you will get a secured valid certificate, renewed automatically, and configured automatically in Terminal Service Plus built-in web server.
This feature uses Let’s Encrypt to provide a free and secure SSL certificate for your HTTPS connections.

Prerequisites necessary to get the free certificate for your domain
Ayou need full qualified domain (example, or, or etc.) If you have only IP (example, or etc.) then either buy domain or check the link signing IP
B: your server with RDPlus installed and with properly configurated webserver must be accessible from internet on port 80 by calling your domain by HTTP protocol (example or etc.) (Go sure HomeLand IP protection is not causing your server to be inaccessible by Let’s Encrypt else you will fail) If you use different port than 80 then you will fail. If you enforce SSL forwarding on port 80 then you will fail too, however Let’s Encrypt claims to support forwarding now.

C: your DOMAIN must point to IP of RDPlus server and not to unspecified server that does not have RDPlus installed!
D: your DOMAIN must match the IP that refers to your RDPlus server.
E: your DOMAIN should not point to dynamical domain services like Dyndns since prohibited by Let’s Encrypt, however that is not a must since few dynamic domain services are still supported by Let’s Encrypt but we do not maintain such list.