I am seeing a weird issue with Firewall Policies on an Endpoint Security 10.2 client with an ePO 5.0.4 running Windows 7 and Windows 10.
Essentially it appears the agent doesn't know how to handle FQDNs with dashes and so it completely ignores them causing MAJOR issues:
If all of the hosts in the rule have dashes in their names then the rule will essentially turn into an ANY-ANY rule.
Steps to reproduce:
If I add an IP address as a, "Local Network" to this rule everything works just fine.
If I add a local network containing a FQDN it also works just fine.
If I add a local network containing a FQDN that has a dash in it dept-computername.contoso.com the client ignores the entire local network section.