Anyone else having problems joining domain in OS X 10.10.2?

I am (have confirmed I have rights since I can remove and join a Windows 7 box) having problems joining a Yosemite OS X 10.10.2 to the domain--I receive a "authentication server encountered an error while attempting the requested operation (5202)" no matter if I use the GUI to join the "Network Account Server" or use DSCONFIGAD command-line command at Terminal.

I was able to join two Mac Minis on 10.10.x a few months ago but I am having problems with a new-out-of-the-box Mini right now. Even tried erasing and reinstalling from a OS X 10.10.2 thumb drive.

Alright, this was purely my own fault. After turning on Directory Services logging and discovering that no attempt was made it turned out to be the Ethernet jack the Mac was plugged into was going into another non-production lab environment. 5502 isn't super helpful by itself!

Our issue turned out to be that the time on the computer was different from our domain controller. Once we set the time correctly we were able to join without a problem.