Ken has an Eero mesh router, but he's concerned because he has several "internet of things" devices and he hears that mesh routers don't like them. Leo says that is the current problem, and it may be that the devices aren't smart enough to handle the mesh way of handling the network. They're working on it and Leo says that a fix will some sooner or later. But in the meantime, hardwiring to the router may be the best solution.
Eero has a list of all compatible devices at support.eero.com.
(Disclaimer: Eero is a sponsor).