Is there someway of getting debug information? Logfile somewhere? Cloud you specify name of logfile in configuration?
Topic on Extension talk:LDAP Authorization
There currently are not any debugging statements embedded in the extension. That would be a good enhancement. In the meantime, you could embed some wfDebug() or wfDebugLog() statements in LDAPAuthorization.class.php as described at https://www.mediawiki.org/wiki/Manual:How_to_debug#Creating_custom_log_groups.