This tip was recently offered on the SBS2003 public newsgroup (thanks R Stovall!):
Here is the definitive answer as far as I am concerned. I used to have all kinds of trouble with various clients and servers, but once I figured out the
sequence of commands I haven’t had a single problem. Honest!
Run the following on the problem machine:
net time /querysntp (this will tell you what your currently configured time source is)
net stop w32time
net time \\(problem-machine) /setsntp:goodsntpservername (more than likely your PDC emulator)
net start w32time
Boom. Done. Happy as a clam!
PS You should be able to eliminate the \\(problem-machine) argument if running the commands locally, but the whole Windows time thing is flaky, and,
well, it doesn’t hurt to be sure.