A problem we're seeing with Ignition's AD authentication is an inability for a user to see when their password is expiring and they're unable to change their password should it expire! This is a big problem where users typically only use a HMI and are not required to use a PC for any other duties. Users could be left in a position where they can't login when there is no support on site to advise why they can't login!
Most 21 CFR 11/Annex 11 compliant software packages we use allow these features,.