Get a very long Ethernet cable, and occasionally walk around the building with the WiFi router. If there's a particular spot where the access has been bad, point the router at it and hold it there for a few seconds, up to a minute. The more devices you have using up your WiFi, the more often you'll have to do this to keep it spread out.
At my grandmother's house, we only have to distribute the WiFi once per year, because she only uses a little WiFi. At work, with dozens of heavy users, we have the IT intern do it once per day, Monday to Thursday. That way we run out of WiFi on Friday, and the developers won't do any deploys.
First of all, ask yourself if you mean over the building or throughout the building. If you want to spread WiFi all over the building, you're going to need to buy a very big umbrella. WiFi is invisible light, so you need to remove all the visible light or else there won't be enough space for the WiFi.
If you want to spread your WiFi throughout the building, you need to be a bit more strategic. Much like outdoor WiFi, indoor WiFi doesn't like the light. It will congregate in places where ambient light is occluded, such as the corners of rooms and where the walls meet the floors and ceilings. You won't get much WiFi inside the parts of the room that matter when that happens. If you have enough power bars, you can point lamps towards the corners and walls. You should also make sure to move your kitchen appliances into the center of the room, as the WiFi might hide under them.
If you submerge your hotspot, the water molecules align and amplify the signal.
Blend it into a course consistency, and then use a fertilizer spreader for even coverage. Works a charm. I have bits of Wi-Fi all over my small town with this proven method.
Is this like WiFi direct?
Direct to your lungs, if you do it right.
First you buy a router, open it up and just gently pour it out as you walk around the building. That's the best way the spread WiFi, you may need 2 there might not be enough Wi-Fi in one router. /s
I find a grout applicator works best. There are some with nice comfortable grips. A stepladder will help reach the ceilings.
Mirrors… disco balls 🪩 to get it reflected everywhere
