We have 2 SL servers (10.6.8). One is an OD master and the other holds a replica. Recently, I created a new user account for a new employee. We started having problems with the employee being unable to log in or connect to shares. If we reboot the server, the user can log in (for a while). When the user can't login, looking at Workgroup Admin on the OD master, the account is there. On the OD replica, it's gone. If I "refresh" WA, the account shows up, but the user still can't log in. Reboot the replica server, and the user can log in and the account shows up in WA without having to "refresh". After some amount of time (less than 24 hours) the problem returns, with the same issue... At first I thought there was some sort of communication problem between the servers, but I don't think there is. When it's not working and the account is missing in WA on the replica server, if I make a change to the user account on the OD master server (like change the picture icon of the user or other info in the account), then go to the replica server and start WA and refresh so the account shows up, the change is there! If I make more changes at this point, the changes are immediate on both servers. So, they are talking. Any ideas? This is driving me crazy why it's happening, why restarting the replica server fixes it, and why it stops working again after a day or so.