Procedure

1. Plug-In Manager is still downloading the plug-in program, which may take some time if the program package size is large. Check the screen from time to time to see if the plug-in program displays.

   Note If Plug-In Manager is unable to download a plug-in program, it automatically re-downloads after 24 hours. To manually trigger Plug-In Manager to download the plug-in program, restart the OfficeScan Plug-In Manager service.

2. The server computer cannot connect to the Internet. If the server computer connects to the Internet through a proxy server, ensure that Internet connection can be established using the proxy settings.
3. The OfficeScan update source is not the ActiveUpdate server. On the OfficeScan web console, go to Updates → Server → Update Source and check the update source. If the update source is not the ActiveUpdate server, you have the following options:
   • Select the ActiveUpdate server as the update source.
   • If you select Other Update Source, select the first entry in the Other update source list as update source and verify that it can successfully connect to the ActiveUpdate server. Plug-In Manager only supports the first entry in the list.
   • If you select Intranet location containing a copy of the current file, ensure the computer in the Intranet can also connect to the ActiveUpdate server.