I have a DC of windows 2000 and 4 clients of win2k professional.Some times there is a situation when my server is powered off(Close) but when my clients try to logon to domain they succesfully logon, however this is a good feature bcoz they take settings from cache.But if I want to also restrict this one that when my DC is down no any previusly loged on client had rught to logon
to DC.