The error that shows the logging of django_auth_ldap is as follows:
It returns error:
14090086: SSL routines: SSL3_GET_SERVER_CERTIFICATE: certificate verify failed
We need the system to find the certificate as it is done in linux when the variable OPT_X_TLS_CACERTFILE is defined. In Windows Server it is definitely different. The certificate has been installed and you can verify in the "mmc" the problem we have in the settings.py configuration.
Greetings