If your Switch keeps disconnecting from Wi-Fi, start by optimizing your network. Move the Switch closer to the router to reduce signal interference from walls, metal objects, or other electronics. Update your router’s firmware to the latest version, as outdated software often causes connection drops. Change the router’s Wi-Fi channel: use a tool like Wi-Fi Analyzer to find a less crowded channel (2.4GHz channels 1, 6, 11 are least overlapping). Disable Wi-Fi power saving on the Switch: go to 'System Settings' > 'Internet' > 'Internet Settings', select your network, and toggle off 'Power Saving Mode'. If using 5GHz Wi-Fi, switch to 2.4GHz for better stability (though slower speed). Restart both the Switch and router—unplug the router for 30 seconds, then plug it back in, and restart the console. If disconnects persist, use a wired Ethernet adapter for the Switch Dock for a stable connection.