Also - performing the following couldn't hurt either:
Have all users exit Sage MAS 200.
Stop the Application Server and close Application Server Configuration.
On the Sage MAS 200 server, rename ..\MAS_System\SY_Console.m4t file
On the Sage MAS 200 server, rename ..\MAS_System \SY_Workstation.m4t file
On the Sage MAS 200 server, rename ..\home\lib\_appserv\LOCATE.PVK
On the Sage MAS 200 server, rename ..\home\lib\_appserv\SESSIONS.PVK
Delete the contents of the MAS90\Locks folder
Restart the Application Server.
Open Application Server Configuration. A new LOCATE.PVK and SESSION.PVK files will be automatically recreated.
On the Application Server Configuration, go to Server Tab, set KeepAlives = Off
On the Application Server Configuration, go to Clients Tab, set Reconnect = None