I have a rather strange thing with wireguard. I have it all set up correctly and working. If i connect to it from the internet it all works fine, using the wan IP address. However if i try to connect to it from my own Wifi I see it tries to connect, I see the packet count in both directions go up, but no more handshakes. The endpoint is updated though. So somehow it is doing something... If I fill in the lan IP then it does work. So maybe it is a lookback thing that stopped working.
I am behind a double NAT, but I put the openwrt router in the DMZ of the ISP router. So all outside connections should go directly to the openwrt router.
Now the strange thing, I had this working before, so something changed, im just not sure what. I did update to 21.02.1 but not sure if this is the actual cause. Could be something maybe on the ISP router (over which i only have limited control)
Does anybody have any suggestions?