Ran the command, "Update content" from the Symantec Endpoint Protection Manager (SEPM). 
However, none of  Symantec Endpoint Protection (SEP) clients appear to have accomplished the command.
In the SEPM Monitors tab, the command status showed 0% command finished.
The SEP clients display a green dot in the tray, and from the SEPM, the clients listed in the Clients tab are also displaying a green dot.
All SEP clients are also up to date with the correct virus definitions.

No Error

Restart the SEPM system, then it runs normally.

Applies To

Win Server 2008 standard X86,32 bit

Symantec Endpoint Protection 12.1