Authentication

Hi all,

I'm facing this issue:

if tls:=no there is no problem at all.  If tls=yes , (when login) the below message appears:

Stack trace:

• line 496 of \lib\setuplib.php: moodle_exception thrown
• line 2176 of \auth\ldap\auth.php: call to print_error()
• line 194 of \auth\ldap\auth.php: call to auth_plugin_ldap->ldap_connect()
• line 4301 of \lib\moodlelib.php: call to auth_plugin_ldap->user_login()
• line 154 of \login\index.php: call to authenticate_user_login()"

the hw/sw is as described below:

• Windows 2008 r/2
• IIS 7.5
• Moodle 3.2
• MS Active directory
• PHP Version: 7.0.9

Any help is  kindly appreciated

Regards

Aldo