https://www.openldap.org/lists/openldap-software/200210/msg00459.html
TLS connect from remote host to slapd hangs
tls connectremote hosthangs
https://www.ibm.com/docs/en/connect-direct/6.3.0?topic=maintenance-disabling-connectdirect-secure-plus-ssl-tls-node
Disabling IBM Connect:Direct Secure Plus on an SSL or TLS Node
To disable IBM Connect:Direct Secure Plus on a SSL or TLS node:
connect directsecure plus
https://www.openldap.org/lists/openldap-software/200407/msg00132.html
Re: Unable to connect via TLS
to connectunableviatls