Thread:Extension talk:LDAP Authentication/Undefined offset: 0 in /xxx/wiki/extensions/LdapAuthentication.php on line 1028/reply (4)

Well, the DN is blank, because the query used didn't find it. The case of the username isn't an issue when using the uid attribute, according to rfc2798. Your settings look proper, but please try commenting out any of the group stuff until you get basic authentication working.

Can you check your LDAP server logs to see if a bind is occuring at all? BTW, if your LDAP server doesn't allow anonymous binds, then you'll need to configure a proxy agent. Even if the server allows anonymous binds, it may not allow anonymous users to read anything, you should test this by using ldapsearch without binding, with a query like (uid=*).