so i finally got wireguard to work on a esp8266 sensor i built.
netmask: 0.0.0.0
and clean build files and new compile after any change to wireguard settings appears to be the trick on esp8266.
But after wireguard connects to remote homeassistant i cant connect to it locally no upload no logs nothing connects, on esp32 wireguard can be connected to the other homeassistant over wireguard and the local homeassistant at the same time and local uploads work.
So are esp8266 just too weak or any tips??