Been having the same problems using the AD Module. When a user visits the portal for the first time it correctly creates an account for the user in DNN. However if the user logs out of the portal when they revisit it they are not logged in automatically again. The only way back is to sit out waiting for the cookie to expire or the user to delete cookies and revist the site. Is this a bug with the module ??
Using the windows login screen doesn`t work either
I`ve also noticed that when the user account is created in DNN it is not picking up the correct details from AD either e.g. email address
rather than picking up an email address as firstname.lastname@domain.co.uk it getting loginid@domain.co.uk.
Also roles assigned in AD are not being created in DNN, I have tried using impersonation as suggested but still it doesn`t work.
I`ve spent sometime trying to get the AD DNN Module to work with my installation with not much success. Am I missing something or are there issues with this module ??