Captive portal on a parent interface blocks traffic on VLAN interfaces too
Using PfSense 2.3.4, I enabled a captive portal on interface em2. Then, as I needed another interface, I added a tagged VLAN on the same switch port, and created a VLAN interface using em2 as parent (em2_vlan55). Took me a while to understand that the captive portal is blocking the VLAN traffic. IMHO this should not be the case. A parent and a VLAN interface should be considered independent.