Now i´m having another problem. I can´t map the users in the next step. When i try to do this, the error message “No users were found using the specified configuration. Try changing the base DN, user filter or username field.” appears.
You should not have needed to change anything in the config for groups to work unless they are not contained with the base DN you set for your users. If they are in a different location you will need to make your base DN less specific.