Zend certified PHP/Magento developer

ASUS Router VPN Client not masking IPs

I am currently trying to set up 2 routers in my home network, one of which is connected to a VPN to mask the IP of any device in its subnet as seen here.

The VPN is definitely set up correctly, as its redirecting all traffic (0.0.0.0), and connecting to it directly via a client does mask its IP. Unfortunately this does not work with devices in my 2nd routers network, which is connected to that VPN using OpenVPN.

There are no errors in the routers logs and the VPN logs correctly indicate a client connection, as far as I can tell but looking up my IP online returns my home IP address and not the VPNs.