Hi William1,

In order to enable https in your Lightstreamer server you have to configure one (or more) <https_server> section in the lightstreamer_conf.xml configuration file.
Please go through the inline comment of the section (https://lightstreamer.com/repo/distr...eamer_conf.xml) for detailed instructions.

Please also take a look at this documentation (https://lightstreamer.com/docs/ls-se...rtificates.pdf) with instructions on how to get and deploy a working TLS certificate in your Lightstreamer server.
Also make sure that the license you are using is compatible with the TLS/SSL feature.

Regards,
Giuseppe