After enabling the AD/LDAP integration for TDM Portal, the TDM native super-user "Administrator" can no longer login.
Test Data Manager Portal
For TDM Portal versions 4.0, 4.1 & 4.2, this is working as designed.
You must login with an AD/LDAP user accordingly.
For TDM Portal versions 4.3, and newer you can optionally disable native users.
tdmweb.security.disableNativeUsers is set to false within the application.properties file if you want to login as "Administrator"