Problem: Services disappear from ArcGIS Server Manager and ArcCatalog after previewing for the first time
After previewing a map service for the first time, or when trying to create a Web application, the map service fails to display, and the list of available services from the ArcGIS Server appears empty.
Note: This article pertains to ArcGIS 10.0 and prior versions. Later versions of ArcGIS may contain different functionality, as well as different names and locations for menus, commands and geoprocessing tools.
The Web browser cache must be cleared.
Solution or Workaround
Internet Explorer (Windows 10)
See the Microsoft Help article: View and delete your browsing history in Internet Explorer
See the following Google Chrome Help article: Delete your Chrome browsing history