<< Server Log >>
The server requires binds to turn on integrity checking if SSL\TLS are not already active on the connection
The Domain Policy "Domain controller: LDAP server signing requirements" is set to "Require signing"
Either of two Options:
Option 1. Undefine the Domain policy:
Computer Configuration > Policies > Windows Settings > Security Settings > Local Policies > Security Options
Domain controller: LDAP server signing requirements
Option 2. Install LDAPS on the eDP server.