Most of my clients can't connect with my dual stack internet connection with IPv6.
I tested now a lot, but cant get it working on my Xiaomi Redmi AC2100.
When I ping outside (eg. to google.com) with IPv6 I never get a answer back.
When I run tcpdump on the Gateway running OpenWRT 21.02 (tested now with rc4 to .1) I see the packets leaving the wan interface and I also see the answers on the wan interface.
But the answers don't come back to the lan interface.
I tested to enable/disable source based policy routing
I tested to enable/disable network.globals.packet_steering
I also have flow offloading switched off!
First I was thinking, is works with windows, but this seams just we random - what is working and what not... now it is also not working on my windows - where it was working before (the screenshots come from that installation)