To check the client-management server connection in Symantec Endpoint Protection Manager
In the console, click Clients and select the target group.
On the Clients tab, clients that are connected display an icon with a green dot in the Name column and display a health state of Online.
Clients that connect through Symantec Endpoint Protection Manager may not immediately display the correct online status in the cloud console. Allow for 5-10 minutes after the online status changes to see an accurate reflection of the current status.