needs results of these two
Testing Communication from an Endpoint Protection client to the Endpoint Protection Manager
https://support.symantec.com/en_US/article.TECH102682.html
this should retrun ok,
then enable logging and attach the, most the times it will be windows firewall or other blocking the 8014 port
Enable sylink debugging for Endpoint Protection clients
https://support.symantec.com/en_US/article.TECH104758.html