Hello,
Check the Logs and found -
03/20 21:10:47 [5084] <Start>Unable to create Session with 'User Proxy' settings - Proxy Server: Error Code: 87
03/20 21:10:47 [5800] <ScheduleNextUpdate>Manually assigned heartbeat=3128 seconds
Check these steps provided below on 1 of the client to check the Proxy settings on "System Account"
Check the Proxy settings in the Internet Explorer of the System Account.
Try the following steps on the SEPM server machine of Windows 2003, Windows XP.
The solution need to done for the SYSTEM account, because when LiveUpdate is scheduled to run it uses the SYSTEM account by default:
Check the SYSTEM proxy settings by following these steps...
- Click 'Start' and click 'Run'
- Type at 12:00 /INTERACTIVE "C:\Program Files\Internet Explorer\iexplore.exe" in the 'Run' box and click 'OK'
- It will create a scheduled task.
- Go to 'Scheduled Tasks' folder in 'Control Panel'
- Right click the file named 'At1' and click 'Run'. It will open an Internet Explorer page.
- Click 'Tools' menu, click 'Internet Options' and click on the 'Connections' tab.
- Verify the connection settings and proxy settings.
- SEP client would start getting updated with the latest definition.
Note: The above steps would not work on Windows Vista, Windows 7, Windows 2008.
Incase, of Windows Vista, Windows 7 or Windows Server 2008 / Server 2008 R2, check this Article: http://www.symantec.com/docs/TECH96141
Reference: https://www-secure.symantec.com/connect/articles/how-configure-proxy-settings-symantec-endpoint-protection-manager-sepm-121
Hope that helps!!