wifi connectivity issues

My devices (phone, mac and i pad) all lost connectivity in my room at the same time, even though they have worked perfectly fine there for over 2 years. Is there something that might be causing this suddenly across all my devices? It's like the wifi isn't strong enough to reach the room (it works outside) or my devices can't connect as well as before.

I did software updates, removed browsing history, turned devices on and off and reset network settings. Nothing worked so any more advice greatly appreciated!