Connection between hub and robot will be only via TLS if [Cipher Type] (on v7.8 Hub AC UI Reference > Advanced > SSL or v7.8 Hub IM GUI Reference > General Tab > Hub Advanced Settings > SSL Advanced Settings) is "AES128-SHA256".
However, some probes (example: cdm, processes, nas) cannot start with this setting.
Currently these probes do not support TLS.
cdm, processes, ntevl, logmon, rsp, nas, and so on.
User needs to set the [Cipher Type] to be "AES128-SHA256:RC4-SHA" for enabling SSL if those probes are necessary.