Symantec offline problem solution :-
8014 port will be open to between client and server machines.If telnet complete on 8014 port. please do the following activity.
1. Go to Run and type Regedit click enter.
2. Go to Hkey_Users\Defult\SoftwareHkey_Users\defult\software\microsoft\windows\CurrentVersion\Internet Settings\Connections and delete the(DefaultConnectionSettings and SavedLegacySettings) and restart the machine.
your client will come on online.