DNS Leaks "Across" Networks

[4r160ld 0]

Greetings,

 

Long Story short;

I have a Netgate APU with pfSense configured with one "Clear" Network, i.e. no VPN connection, and one VPN Network connected to AirVPN.

The clear network has the WiFi AP on it, and most of the time, my laptop (Fedora 25) is connected to the Clear network, but is connected to another VPN provider separately.

However, running DNS leak test (dnsleaktest.org, whoer.net etc) sometimes shows the AirVPN DNS on the Clear network, both then devices are connected to a seperate VPN on the clear network, and when they are not. Is this an AirVPN issue, or some sort of lacking pfSense configuration? Would this perhaps be a questions better suited for the pfSense forum?

 

Thanks for any help.