Bob is looking for software that can test all his network switches to see which is going bad. Leo says that there is an article on Tom's Hardware on how to test network switches. That includes some software to test it. GL Communications makes software ethernet and packet checker called Packet Check.
Bob is also wondering if a mesh router would work well for gaming. Leo says that there are routers designed for gaming, which prioritize QOS (quality of service). They have custom settings for it.