Hi,
Is it possible to reboot the management server?
Check the policy serial number in the client and in the policy manager.
You should check the policy serial number on the client to see if it matches the serial number that appears in the management console. If the client communicates with the management server and receives regular policy updates, the serial numbers should match.
If the policy serial numbers do not match, you can try to manually update the policies on the client computer and check the troubleshooting logs.
To view the policy serial number in the management console
1. In the management console, click Clients.
2. Under "View Clients", select the relevant group, and then select the Details tab.
The policy serial number and the policy date appear at the bottom of the details list.
To view the policy serial number on the client
1.On the client computer, in the client user interface, click on the Help and Support button, select Troubleshooting.
- In the Management section, look at the policy serial number.
If above steps didn't help then please pass on Sylink logs.
How to enable Sylink debugging for the Symantec Endpoint Protection 11.x and 12.1 client in the Windows Registry
http://www.symantec.com/docs/TECH104758