We're having some weird problems here. Late last week our default GPO
got set somehow to lock user accounts after 1 invalid login attempt and
never unlock them so they needed to be unlocked manually. Got that
resolved, but now we're having another weird issue.

Many of our domain computers, servers included, are showing as
'unauthenticated' to our domain, including my laptop. I've tried the
netdom command to reset my 'computer' password, plus commands to reset
the winsock & ip stacks, all to no avail.