8 Things You Can Do to Improve Wi-Fi on Samsung Galaxy Phones
To access this menu, open Settings, then tap Connections > Wi-Fi. Tap the three-dots menu icon in the top-right, then tap the "Intelligent Wi-Fi" option. Scroll to the bottom, then tap the "Intelligent Wi-Fi" item (with a number underneath it) at least five times to reveal a new "Connectivity Labs" option underneath, which you should then select.