Hey be careful. If you have a window made of glass, someone walking by may notice that and decide to break it, enter your home, kill you, remove your face, wear it over their own face and steal your identity.

Did you try a directional antenna? 80ft is not far. Even boosting the antenna signal in the router settings, or changing the channel may help.

A great GUI to manage the router does not mean the router does networking/WiFi well.