Ed has a Google mesh router system and he wants to be able to get Wi-Fi out in his barn, which is 100' away. Can he get another mesh unit or should he do ethernet? Leo says that if he has a window, then he could put a mesh unit on the windowsill, and another in the window of a barn so they would have line-of-sight connectivity. It's certainly worth a try. Ed could also try powerline networking if the barn and his home are on the same junction. The other option is to use a Wi-Fi antenna. Leo recommends going to RadioLabs.com for what the best Wi-Fi antenna option is.