I have found a solution and made this project very simple and it only uses one wemos. I now run a 30m twin core cable from the shed which is attached to the reed switch to the wemos which is inside and now i dont have to bother with wifi, just need to drill 3 holes through the walls without the wife...

I am trying to make a project which in my mind seems really really simple but i cant get it to work. What i what to do is have a magnet reed switch on a door. This door is attached to my shed in the garden away from the house but within WIFI range and has power inside. I want to use a wemos d1 mini ...