Dear Team,
Kindly provide the port number for Altirs in between client and server communication?
Look this public Kb's and one of disscussion
Summary of Ports Used by Altiris Solutions
http://www.symantec.com/business/support/index?page=content&id=HOWTO3401
https://www-secure.symantec.com/connect/forums/altiris-uses-ports
check it,