User Federation - LDAP - StartTLS

I recently decided to encrypt my LDAP server and clients on Linux Ubuntu.
It seems everything works find but I broke Keycloak, which worked fine before I encrypted with startTLS.
Log error:
LDAP: error code 13 - TLS confidentiality required

The Advanced Settings button “Enable StartTLS” doesn’t seem to help much.

Just using regular standalone.

Sure could use some advice. What am I missing?