This new technology might help those of us with barns and detached shops. Let me explain. Our house is a kit house made in three sections with three separate foundations. Under the main house is a finished basement. Under the bedroom section of the house is a walk-in crawl space that has about 5.5 - 8 feet of height depending on the location. It has a dirt floor so it's appropriately named the dirt room. There is a cement slab under the garage.
A 8” concrete wall actually exists between each section for some reason. Because of this, getting wireless signals from one section of the house to the other is difficult. My wife couldn’t get an internet signal in the bedroom from the living room. If we moved the router to the middle section of the house, the signal wouldn’t pass to the main part of the house. Wifi extenders offered no help.
I found a newer router that sets up a “mesh” system that utilizes separate wireless routers on the same system. You run Cat 5/6 cable between each of the routers so the routers are hard-wired together. Ideally you will have an overlap of wireless signals similar to what a Venn diagram looks like. The router system in the house is made by Eero. The first version is about 50% off right now because an update came out. We now have Internet all over the house and now in the shop. At the farm I am going to bury a Cat 5/6 wire and do the same thing between the farmhouse and shop space.