In Mac OS X v10.6.8 and OS X Lion v10.7 through 10.7.2, delays may occur when joining to or authenticating users against an Active Directory domain that ends in ".local"....
After upgrading Mac OS X Server v10.6 to Lion Server v10.7.2 or earlier, servermgrd may not start automatically. This can cause the following symptoms:
Server app's login window will indicate an invalid login even though the correct username and password have been entered.
Server Admin will show an alert: ...
In order for OS X Lion clients to be able to bind to Active Directory when read-only domain controllers are present, you should update the clients to OS X Lion v10.7.3 or later....
Server Admin Tools 10.7.3 contain advanced administration tools for Lion Server. You can install them on the server or on another Mac and use it for remote administration....
Apple Remote Desktop client 3.5.2 is included in the OS X Lion v10.7.3 Update, and as a standalone update for Apple Remote Desktop on Mac OS X v10.6 Snow Leopard. It is recommended for all Remote Desktop clients....
The OS X Lion v10.7.3 Update is recommended for all OS X Lion users and includes general operating system fixes that improve the stability, compatibility, and security of your Mac....