Can't login once it's synchronized with Active Directory

[aesptux]

Hi all

I've managed to sync Zentyal with Active Directory on a Server 2003. I have all the groups and users on Zentyal, so I think the sync worked.

I've shared a folder only for maths group, and another for literature group, using permissions. My problem is that when I want to access, it asks for a user, and I write an existing user, and it says that the login was unsuccessful.

I've activated File Sharing module, by the way.

What can be wrong?


Thanks in advance.