Hi
what Xerte version are you testing this with?
when you say "configure the record in the Ldap table" are you doing that via the management page or direct in the DB?
Have you checked the system requirements
xot.xerte.org.uk/play.php?template_id=81#systemrequirements
and is the LDAP extension definitely enabled?
Try the following:
Set the auth back to db, login to management and check/populate the LDAP settings via the management page.
Set $development = true; around line 43 of config.php
Set auth method to Ldap via management and test login
Check apache error.log and also xerte debug.log
Also make sure that your xerte server can reach your ldap server.
BTW most Universities and some others have switched to Saml2/SSO rather than Ldap which can also be tricky to get working at first but once set up works very well. Look at the instructions inside the 3.15 download for that.
HTH
Ron