Error when trying to view User Setup treeview in System Manager or in Enterprise v2012
Symptoms
When trying to search for a user in User Setup treeview, the web page does not display.
Error/warning messages
Page cannot be displayed
Reason:
ASP page requires more time to complete due to the number of users in the system.
Resolution
Increase the “Script time-out” setting for the Enterprise website, from 1:30 to 2:30 or 3:30 , under the IIS->ASP section in IIS Manager.
Restart the website after this change.