LDAP not working, undefined vaiable: res

[dryang]

Hello. I'm trying to configure LDAP AD authentication on fresh sugarcrm installation (SugarCE-Full-6.2.0).

After filling in server options and attempting to login to sugarcrm, I receive error:
Invalid credentials.

In domain controller's security event log I can see that user defined in LDAP settings is authenticating, getting privileges assigned and then getting logged off.

In apache error log whenever I attempt to login I can see the following error:

[Mon Jun 20 20:24:33 2011] [error] [client <IP>] PHP Notice: Undefined variable: res in /opt/SugarCE-Full-6.2.0/modules/Users/authentication/SugarAuthenticate/SugarAuthenticate.php on line 94, referer: https://my.domain.com/index.php?modu...s&action=Login

Could anyone please recommend a way to trace out the problem.

P.S. I have tested LDAP connection with adldap script. It's successful.

[dryang]

Ok, I tried to set variable $res to either 1 or 0. The apache log error is gone, but still getting "Invalid credentials".

[dryang]

Post can be closed. Finally made it working. The problem was in configuration settings. This is what made it work:

Server: server.my.domain.com
Port Number: 389
User DN: dc=my,dc=domain,dc=com
Bind Attribute: userprincipalname
Login Attribute: samaccountname
User Name: user@my.domain.com

Thanks to this post.