You can follow this. Chnage the Liveupdate policy accordingly
1. In the console, click the Clients tab.
2. Select the group to configure.
3. Click on the Policies tab at the top right.
4. Edit the Live Update Settings Policy.
5. Click Server Settings.
6. Check the box for Use a LiveUpdate server.
7. Select the radio button for Use the default Symantec LiveUpdate server.
8. Click Schedule.
9. Configure the schedule that is appropriate for the environment.
10. Click Advanced Settings.
11. Configure the advanced options as appropriate for the environment.
12. Click OK