go to control panel - windows Firewall - Exceptions- Add Program - Browse -
for SMC Service
C\Program Files\Symantec\Symantec Endpoint Protection\Smc.exe
For Symantec Email
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
For SNAC Service
C:\Program Files\Symantec\Symantec Endpoint Protection\SNAC.EXE
For Adding Port TCP 8014.
Next to Add Program click ADD Port-
Name: Give it any name like SEP Port
Port Number:8014
TCP