I have a small 2000 domain(1 DC and 4 WS) It has worked flawlessly for 2 plus years. Recently, I have experienced major time problems. Every few days nobody is able to log in because "the time on the machine and the server are not in sync" or so it says. Even when I try to log into the server, I get that message. Rebooting the server(sometimes multiple times) seems to resolve the problem. The time is right on all machines, so I'm pretty confused. Any help is greatly appreciated.