By default, clients that have system clocks set more than 24 hours plus or
minus of the time set on the primary management server do not let
administrators directly configure settings. For example, you cannot
right-click on an out-of-sync client in the Symantec System Center and
view the client logs. Out-of-sync clients, however, do accept settings
that administrators apply to groups. For example, if you right-click a
group in the Symantec System Center and change the Client Auto-Protect
setting, the out-of-sync client accepts the new setting.
The reason that you cannot directly configure client settings is because
the system uses the Login certificate, which is valid for a specified
time only. You can change the times in the Symantec System Center with
Configure login certificate settings at the group level. The reason
that the out-of-sync clients accept group-level changes is because the
system uses the server certificate, which is valid for five years.