Due to corporate IT working its fingers into everything vaguely computer related, I now have to annually change the passwords that operators use to log onto the HMIs on my OT network (which has no connection to the greater Internet.)

That means I now get calls after hours for a couple weeks (allowing for all shifts to cycle through) from operators who are locked out of their ops stations. I can't send the password via email, obviously, and word-of-mouth is inconsistent at best. So I'm left with the sticky note under the keyboard or stuck to the monitor, which the operators won't read anyway.