core : Users cannot log into UserPortal

Issue with user login using Active Directory.
After first failed login (bad/expire passwd) no other
user from ad can login to the system.

Change-Id: I2d7b169263581ea7c69bac4c503d804e14e944db
Bug-Url: https://bugzilla.redhat.com/994604
Signed-off-by: Ravi Nori <rnori@redhat.com>