I have built a new server,a nd trying to ldap 636 and it won't let me.
If tere some setting I need to enable. It's been a while since I've
done this. I have two servers which this works on, but I cannot see
what is configured differently.

TCPCON shows a listening port on ldaps across all my servers.

I have TLS turned off so 389 is fine, just no action on 636.

Any help ?