This $45 gadget fixed my smart TV’s awful internet

My smart TV’s internet connection was awful. Every few minutes, videos paused to buffer. The apps crashed when I tried to open them. Loading screens went on forever. Movie night became an endurance test. My internet plan was fine: 1,200 Mbps down. But my three-season room sits far from the router, and all that wall insulation plus the double-pane windows basically murdered the Wi-Fi signal.