The Symantec Endpoint Security (SES) Quarantine firewall policy is not working as expected. Custom allow rules in the Quarantine Firewall Policy appear to be ignored when the client is quarantined.
Editing the default quarantine firewall policy won't work.
Release : 14.3 RU5
When a SESC client is manually quarantined, it will use a default quarantine firewall policy. Any additional or custom rules will be ignored.
The built-in Quarantine location will not accept any additional/ custom rules in the Firewall policy.
If you would like to use custom firewall rules, a new Policy Target Rule needs to be set up: