Is it possible to define the fallback AP address. I already gave a network on 192.168.4.x
Regards. Martin
I does not matter that you already have a network on that subnet, unless it is reachable through a wired connection on the device you will connecting to the fallback AP on the ESPHome.
The solution is to just disable the wired connection or remove the cable in those few minutes it takes tot connect and adjust the the ESPHome device.