If you click the Shut Down button on the At Ease login pane while there is an active connection to the file server, the computer hangs with a spinning cursor. If you are disconnected from the server, the At Ease machine completes its shutdown. This occurs on both LocalTalk and Ethernet networks.
This only occurs when AppleShare Workstation (client) version 3.6 or 3.6.1 is installed on the client At Ease 3.0 computer.
This has been fixed in At Ease for Workgroups 3.0.1. The At Ease for Workgroups Updater 3.0.1 is available from online services.
These articles can help you locate the software update mentioned here: