Hi
Below are the Step which can help to Enable the Live Update Tab on that client which are managed by Server but not in office domain/network
Double click on Symantec Client shield from Taskbar.
Go to HELP AND SUPPORT -> TROUBLESHOOT
From TROUBLESHOOT Tab Export the Policy from Policy Profile
Save it with name of Policy.xml in your Local System
Edit the Policy.xml in Notepad
Find the below Content and make the appropriate changes mention below.
AllowManualLiveUpdate, AllowPatchByLiveUpdate
Set the Value as "1"
(I.E AllowManualLiveUpdate="1" , AllowPatchByLiveUpdate="1")
Than save the file in XML format and import the same.
Import Step
Go to HELP AND SUPPORT -> TROUBLESHOOT
From TROUBLESHOOT Tab Import the Policy from Policy Profile
Add the same file.
After add the policy Live Update Tabe getting enabled.
Click on that tab and it able to download the defintion directly from Internet.
Hope this information help to you