Netgear Orbi AX6000 - Open VPN Not Connecting While on Wifi

I have enabled DDNS and OpenVPN on my Netgear Orbi AX6000 and am able to use the Open VPN Android app to connect while on my mobile network. However, as soon as I connect to the WiFi, the app can no longer connect. Has anyone been able to get it to work?

I've modified my .ovpn configuration file to include all the certificates but have otherwise left the default configuration. It looks like this:

client
dev tun
proto udp
sndbuf 393216
rcvbuf 393216
push "sndbuf 393216"
push "rcvbuf 393216"
remote example.mynetgear.com 12973
resolv-retry infinite
nobind
persist-key
persist-tun
cipher AES-128-CBC
comp-lzo yes
verb 0

<ca>
-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----

</ca>
<cert>
-----BEGIN CERTIFICATE-----
...
-----END CERTIFICATE-----

</cert>
<key>
-----BEGIN PRIVATE KEY-----
...
-----END PRIVATE KEY-----

</key>