I have a WAX202. Clients get DHCP leases from the main router, a pfsense firewall. I can ping google's IPV6 DNS from clients, and I can ping openwrt.org via IPV6. I can't do the same on IPV4. If I plug the cable connecting the AP to the main switch into my laptop, it can be used fine. I want to fix this. I have no idea how I achieved this insanity, normally IPv6 is what is broken.
Router is running OpenWrt 22.03.0 r19685-512e76967f / LuCI openwrt-22.03 branch git-22.245.77528-487e58a