I have a Mac Mini running Yosemite and Server 4 set to replace an older server. I've been working on adding users and files so I don't have to move the whole office over at once. The issue I'm having is current users aren't able to log in from a machine that's been bound to the OD. Any new users I create have no problems. A couple weeks ago, I had an issue with this same server where it wouldn't let me create new users or change passwords. I ended up resetting everything and starting from scratch. It solved that problem, but I'm guessing this new problem is somehow related to it, as it's only the users that already existed that are having the log in problem. Any suggestions on where to look or how to find an answer?