Sometimes, you and your neighbors will have intersecting and overlapping WiFi networks in the surrounding area. Normally, these impacting factors are quite hidden from sight, but the tool "inSSIDer" allows you to see the details. With the software, you can assess channel, channel width, signal strength, WiFi generation, maximum data rate, and security. You can download a Windows version or a Mac OS version for your computer, and use what you learn to improve your speed!
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.